PT 33 S3 Q18

Studies have shown that photosynthesis, the process by which plants manufacture ... ...

The flawed reasoning in the argument above is most similar to that in which one of the following?
(A) Because a high fiber diet has been shown to be more healthful than a low fiber diet, a diet in which foods with a low fiber content have been entirely replaced by foods with a high fiber content is bound to be even more healthful.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Parallel Flaw" Questions, Set 2