Which action describes a response to internal stimuli?

Catching a ball at a baseball game

Drinking water when are thirsty

Running at the sight of a wild lion

Writing a thank u note

Which of these is a fact about performance enhancing drugs? a. steroids lack addictive properties. b. steroids use can cause dangerous side effects. c. it is safe to use steroids when working out. d. a person can get in legal trouble for using steroids.