Ostrich, a C Corporation, Has a Net Short-Term Capital Gain

Ostrich, a C corporation, has a net short-term capital gain of $20,000 and a net long-term capital loss of $90,000 during 2014. Ostrich also has taxable income from other sources of $1 million. Prior years' transactions included the following:
$\begin{array}{llr} \text { 2010 net short-term capital gains } &\$20,000\\ \text {2011 net long-term capital gains } &15,000\\ \text { 2012 net short-term capital gains } &25,000\\ \text { 2013 net long-term capital gains } &5,000\\\end{array}$

a. How are the capital gains and losses treated on Ostrich's 2014 tax return?
b. Determine the amount of the 2014 net capital loss that is carried back to each of the previous years.
c. Compute the amount of capital loss carryover, if any, and indicate the years to which the loss may be carried.
d. If Ostrich were a proprietorship, how would Ellen, the owner, report these transactions on her 2014 tax return?