Which of the following situations is an example of a physiological factor?

(1 point)
Responses

You are sad because of an argument you had with your parents.
You are sad because of an argument you had with your parents.

You are excited because you’re looking forward to seeing a childhood friend.
You are excited because you’re looking forward to seeing a childhood friend.

You are nervous because you’re not sure how well you performed on an exam.
You are nervous because you’re not sure how well you performed on an exam.

You are tired because you stayed up all night studying for an exam.
You are tired because you stayed up all night studying for an exam.

You are tired because you stayed up all night studying for an exam.

The situation that is an example of a physiological factor is:

"You are tired because you stayed up all night studying for an exam."