Colleen Telephoned an Off-Campus Computer Store and Ordered Five Flash

Multiple Choice

Colleen telephoned an off-campus computer store and ordered five flash drives at $10 apiece. Later that day she observed that they were a very good buy; she called the store the next day to order 60 of them (for resale to her dorm-mates at a slight profit) . Which is true?

A) The modification is void for lack of consideration.
B) The modified agreement is unenforceable.
C) The changed agreement is entirely enforceable.
D) The modified contract is void.