Which one of the following assets should Manuel contribute to his favorite charity and why?
a. Stock acquired five years ago at a cost of $13,000. The current fair market value is $10,000.
b. Stock acquired six months ago at a cost of $4,000. The current fair market value is $10,000.
c. Inventory items acquired last year for Manuel's sole proprietorship. Their cost was $12,000, and their current fair market value is $10,000.
d. $10,000 in cash.