Answer: C) She didn't randomly assign participants to the experimental and control groups.
Explanation: It is necessary to randomly assign people to hot or cool units becasue if you give people a choice, they will automatically select the room with the temperature they prefer which would overthrow the point of the experiment.
Hope this helps! :)
Answer:
Vanished is suspenseful because when the mom was going into the camping ground owners cabin she was worried he'd find her.
Explanation:
Answer: It builds momentum, which contributes to a tone of frustration