Green Corporation, a calendar year taxpayer, has ordinary income of $10,000 and a long-term capital loss of

Question:

Green Corporation, a calendar year taxpayer, has ordinary income of $10,000 and a long-term capital loss of $12,000 in 2016. For past years, it had a long-term capital gain of $2,500 in 2013 and a long-term capital gain of $5,000 in 2015.
a. How much of the long-term capital loss can be deducted in 2016?
b. Carried back to prior years?
c. Carried forward to future years?
d. What is the nature (long- or short-term) of any carrybacks or carryforwards?