In an experiment, a group of volunteers initially received common food and then a strictly specified diet. Their protein needs were met by amino ac...

In an experiment, a group of volunteers initially received common food and then a strictly specified diet. Their protein needs were met by amino acids; their mass needs, by essential fats; and their carbohydrate needs, by glucose or a mixture of glucose and sucrose (common sugar). The phases of the experiment are described below:

A) The volunteers' carbohydrate needs were met by a mixture of glucose and sucrose in all phases of the experiment.
B) The volunteers' protein needs were met by amino acids in all phases of the experiment.
C) The volunteers' mass needs were met by essential fats in all phases of the experiment.
D) The volunteers' carbohydrate needs were met by glucose alone in the first phase of the experiment.
E) The volunteers' carbohydrate needs were met by glucose alone in the second phase of the experiment.
A
B
C
D
E