Damba offers to buy a book owned by Lee for $40. Lee accepts and hands the book to Damba. The transfer and delivery of the book constitutes performance. Is this performance consideration for Damba’s promise?

a. Yes because performance always constitutes consideration.

b. Yes because Damba sought it in exchange for his promise, and Lee gave it in exchange for that promise.

c. No because performance never constitutes consideration.

d. No because Lee already had a duty to hand the book to Damba.