50 Which of the following can be concluded from the article?
(A) Many vegetarians are at risk of serious illness.
(B) Nutritionists believe that following a vegetarian diet is healthy.
(C) Eating meat is bad for the environment.
(D) There are now too many vegetarians.

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統計： A(13), B(59), C(107), D(24), E(0) #2778185