If you receive $200 from your family as a graduation gift and decide to keep it in your wallet instead of depositing it into your savings account earning 2%, what is your opportunity cost?
A) The opportunity cost would be $4.
B) The opportunity cost would be $40.
C) The opportunity cost would be $20.
D) The opportunity cost would be $200.

Steven spielberg's classic movie jaws was a thriller about a great white shark that terrorized tourists at a local beach. just before the shark's appearance, eerie music began playing. as the unseen shark came closer, the tempo of the music picked up. after the audience had experienced this a few times, the sound of the music triggered the emotional reaction of fear in the audience even though the shark still had not appeared. at that point, the sound of the eerie music was a: a) unconditioned response (ucr) b) conditioned response (cr) c) conditioned stimulus (cs) d) unconditioned stimulus (ucs)