Nicola Waiters had time for the experiments 查看材料A.t

Nicola Waiters had time for the experiments 查看材料

A.the volunteers do

B.because she does not have a weight problem

C.because the life there can be very boring

D.make people overeat

E.because she was her own boss

F.after passing a high-protein test

请帮忙给出正确答案和分析，谢谢！