Change in diet, sleep patterns, and routine are all signs of stress.
a. physical
b. emotional
c. cognitive
d. behavioral

The correct answer is d. behavioral stress.

Behavioral signs of stress refer to behaviors and actions that result from undergoing stress. Behavioral stress does not involve feelings of stress (emotional signs), thoughts (cognitive signs) or physical signs such as increased heart rate, shallow breathing, etc. (physical signs). Changes in diet, sleep patterns and routine refer to behavioral signs of stress. 

Can you translate this