Required information [The following information applies to the questions displayed below.] Calvin reviewed his canceled checks and receipts this year (2021) for charitable contributions, which included an antique painting and IBM stock. He has owned the IBM stock and the painting since 2005 . Calculate Calvin's charitable contribution deduction and carryover (if any) under the following circumstances. (Leave no answer blank. Enter zero if applicable.) c. Calvin's AGI is $79,000