Critical Reasoning

The average level of fat in the blood of people suffering from acute cases of disease
W is lower than the average level for the population as a whole. Nevertheless, most
doctors believe that reducing blood-fat levels is an effective way of preventing
acute W.

Which one of the following, if true, does most to justify this apparently paradoxi cal
belief?

(A) The blood level of fat for patients who have been cured of W is on average the
same as that for the population at large.
(B) Several of the symptoms cha racteristic of acute W have been produced in
laboratory animals fed large doses of a synthetic fat substitute, though acute W
itself has not been produced in this way.
(C) The progression from latent to acute W can occur only when the agent that
causes acute W absorbs large quantities of fat from the patient's blood.
(D) The levels of fat in the blood of patients who have disease W respond
abnormally slowly to changes in dietary intake of fat.
(E) High levels of fat in the blood are indicative of several diseases that are just as
serious as W.

That was a bit confusing Question for me. I ot it wrong. Please provide explanations along with the answers,

OA later.