Jimmy is very excited about the costume party with a 1990s theme. He is planning to dress up as MC Hammer but is also considering going as a lifeguard from Baywatch. His opportunity cost of arriving dressed like MC Hammer is:
a. giving up the alternative of dressing like a lifeguard.
b. the cost of parachute pants that MC Hammer would wear.
c. the savings from not purchasing red swimming trunks.
d. there is no opportunity cost because he attended the party either way.