Which of the following are true of descriptive statistics?

Initially, commercially available films only lasted about 30 seconds because the fierce jerking movement of the feed mechanism tended to break filmstrips when they were more than fifty to one hundred feet

Indicate whether this statement is true or false.

Mimicry often leads to compliance from a stranger. Studies have shown that the use of mimicry increases the likelihood that a stranger will ______.

a. read and offer feedback on a written essay b. donate money to charity c. volunteer to fill out a survey questionnaire d. all of these