Question: the graph above shows the weight change seen in people...
The graph above shows the weight change seen in people in different groups over a set period. Which one of the following is NOT a crucial piece of information needed to interpret this study?
A. The number of participants in each group.
B. The initial weight of each participant.
C. The month the study was commenced.
D. The exact diets of the different groups.
E. The sex of the participants