The best time of day to exercise is

a. in the afternoon.
b. whenever a person feels is the best time to work out.
c. at night.
d. in the morning.

The correct answer is A. In the afternoon. It's not right after a meal and it's not like you just woke up and are not fully awake. It's also good because it's not the hottest part of the day so you won't overheat and suffer a heatstroke. Afternoon is therefore the perfect period for working out.