Which of the following are examples of production that a non$-$economist might not ordinarily think of as production?

Instructions: In order to receive full credit, you must make a selection for each option. For correct answer$($s$),$ click the box once to place a check mark. For incorrect answer$($s$),$ click the option twice to empty the box.

check all that apply

Usain Bolt running the $100$ metersunanswered

An opera singer performing an ariaunanswered

Someone cooking dinner for his familyunanswered

An economics professor teaching intermediate microunanswered