Sentence Correction

Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could help reverse blockage of coronary arteries, the blood vessels that feed the heart.

(A) Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could
(B) Despite no foods having been proved to reverse hardening of the arteries when consumed, studies indicate that refraining from eating certain foods can
(C) Although the consumption of no particular foods have been proved to reverse hardening of the arteries, studies indicate that to refrain from eating certain foods could
(D) Although not proved that the consumption of any foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods can
(E) Although it has not been proved that the consumption of any particular food will reverse hardening of the arteries, studies indicate that refraining from eating certain foods can

Q/a-E why not A

Ankitaverma wrote:Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could help reverse blockage of coronary arteries, the blood vessels that feed the heart.

(A) Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could
(B) Despite no foods having been proved to reverse hardening of the arteries when consumed, studies indicate that refraining from eating certain foods can
(C) Although the consumption of no particular foods have been proved to reverse hardening of the arteries, studies indicate that to refrain from eating certain foods could
(D) Although not proved that the consumption of any foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods can
(E) Although it has not been proved that the consumption of any particular food will reverse hardening of the arteries, studies indicate that refraining from eating certain foods can

Q/a-E why not A

In A and D, reverse (plural) does not agree with consumption (singular).
Eliminate A and D.

In C, have been proved (plural) does not agree with consumption (singular).

NOUN + having-modifier is always wrong.
Thus in B, foods having been proved is incorrect.
Eliminate B.

The correct answer is E.

Sorry for asking a basic question, but can anyone tell HOW THE "CONSUMPTION" is singular.

Sorry if I am wrong but I approached this question in different way.
1)The first part of the sentence ends with reverse hardening of the arteries(Present Tense)
Eating certain foods could is not in Present Tense
So I eliminated Option A and Option C.

2)Having Been Made is making the sentence Passive which is not preferred.Eliminate Option B.

3)Although not proved is not conveying the meaning clearly.
It requires a subject which is absent in this option.

Hence option E is correct.

Please let me know if I am correct?

AnjaliOberoi wrote:Sorry for asking a basic question, but can anyone tell HOW THE "CONSUMPTION" is singular.

By definition, consumption -- the ACT of ingesting food -- is singular.
The prepositional phrase of any particular foods serves as an adjective describing the KIND of consumption.
What KIND of consumption?
The consumption OF ANY PARTICULAR FOODS.
Regardless of this modifying phrase, consumption remains a singular subject.