The word "these" refers to ___________.

D

- Hướng dẫn giải

Phương pháp giải:

Giải chi tiết:

Đáp án là D. Ý trong bài:  Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. A few of these are almonds, green peppers, peaches, tea, grapes.