During 2016, Siskin Corporation (a C corporation) had the following transactions:

Income from operations ................................................................................... $500,000

Expenses from operations ................................................................................. 425,000

Dividends from domestic corporations (less than 20% ownership) ................40,000

Dividends received deduction (70% × $40,000) .................................................28,000

Unused short-term capital loss from 2014 (there are no capital gains

in 2015 and 2016) ................................................................................................... 2,500

NOL carryover from 2015 .....................................................................................40,000

In June 2016, Siskin made a contribution to a qualified charitable organization of $10,500 in cash (not included in any of the items listed above).

a. How much, if any, of the contribution can be claimed as a deduction for 2016?

b. What happens to any portion not deductible for 2016?