PLEASE HELP! Please put an actual answer

Which of these situations shows someone who is considering opportunity costs?

A. Sam volunteers in a hospital and later joins his friends in a game of football.

B. Martha buys all the groceries she needs for the month.

C. Amanda decides to use her free time to exercise instead of sleep.

D. Clara goes shopping at a mall and buys two pairs of shoes.

Hilard and clint are seeing a therapist for their sexual difficulties. their homework assignment this week is to caress each other while communicating what is pleasurable to each of them, and to avoid setting any performance goals. this is called the exercise.

Which beliefs and principles in the declaration of independence and the us constitution create a national identity

Hegyes was driving her car when it was negligently struck by a unjian enterprises truck. she was injured, and an implant was placed in her body to counteract the injuries. she sued unjian, and the case was settled. two years later hegyes became pregnant. the growing fetus pressed against the implant, making it necessary for her doctor to deliver the child 51 days prematurely by cesarean section. because of its premature birth, the child had a breathing handicap. suit was brought against unjian enterprises for the harm sustained by the child. was the defendant liable?