MicroCorp Hires Nick to Work for One Month at a Weekly

Multiple Choice

MicroCorp hires Nick to work for one month at a weekly salary of $400. A MicroCorp representative orally agrees two weeks later to double Nick's salary. This agree?ment is

A) enforceable because an employment contract is an adhesion contract.
B) enforceable because the parties have executed an accord and satisfaction.
C) unenforceable because Nick has incurred no additional detriment in ex?change for MicroCorp's promise.
D) unenforceable because Nick's performance is uncertain.