Otto Approaches Mary and Says,"If You Pick Up My New

Multiple Choice

Otto approaches Mary and says,"If you pick up my new suit for me at the mall tomorrow,I'll pay you $20." Mary replies,"I don't know if I'll have time to get it,but I'll see if I get a chance." As a result of this conversation ________.

A) Otto and Mary have formed a bilateral contract
B) Mary has a legal obligation to use her best efforts to pick up the suit
C) a contract will be formed only if Mary picks up the suit
D) the contract Otto and Mary have formed is void because Mary did not promise a performance