Select the correct text in the passage.

Which rule is specifically designed to prevent contamination?

A group of 7th-grade students is helping to prepare lunch in the school cafeteria. The nutrition director gives them a handbook with rules to follow while in the kitchen—the Cafeteria Handbook for Safety.

A. Students must adhere to these safety guidelines while assisting in the kitchen: there is a limit of five students in the kitchen at one time;

B. only one student may work per workspace

C. students should wear new pairs of gloves when working with a new food

and

D. students should measure each ingredient and follow the recipe exactly.