Some experts believe that within the next few decades, we will be able to identify the dietary pitfalls that lead to a particular group of illnesses. This will allow researchers to discover which foods can prevent health problems, and also which foods lead to health problems. Therefore, those people who follow the dietary standards based on that knowledge will be able to completely avoid the particular group of illnesses.
Which of the following assumptions is necessary to the argument’s conclusion?
(A) Only one dietary strategy can effectively counteract all illnesses. - WRONG. No,
not one but
many dietary standards are required for
some group of illnesses.
(B) Eventually, medicine will be almost entirely based on nutrition strategies. - WRONG. May be a prediction. But its Out of scope.
(C) Each member of the particular group of illnesses is caused solely by dietary factors. - WRONG. There can be unforeseen reasons that may cause the illness of that group. Argument says dietary factors ---> illness 'A' and predicts that in future we would be able to avoid these factors, hence the reverse may or may not be true. But its possible that Reason X ---> illness 'A' OR Reason Y ---> illness 'A'.
(D) All diseases have some dietary causes or cures. - CORRECT. Indirectly it says if some dietary causes are avoided illnesses can be prevented completely. If no dietary causes are there for the diseases then argument falls.
(E) It is difficult to convince people to change their diets without solid proof of the costs or benefits of certain dietary habits. - WRONG. Out of scope.
IMO Answer D.
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Pain + Reflection = Progress | Ray Dalio
Good Books to read prior to MBA