Refer to the Figure Shown

Refer to the figure shown.
The most accurate description of the results in the figures is

A) gazelles cycle their metabolic rate more in summer than in winter.
B) oryxes have less consistent body water content in winter than in summer.
C) gazelles have more variable urine concentrations in winter than in summer.
D) oryxes have more variable body temperatures in summer than in winter.