240.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


the right choice for above question is E ,can anyone explain ???