Answer:
$0
Step-by-step explanation:
Since 100% of Cooper Corporation's stock were owned by Carole and Chris (who are siblings), then no one can recognize any loss or gain from the contribution of property (nor the distribution of property). Under section 351, no gain or loss can be recognized for the contribution of property in exchange for stocks in a controlled corporation.
Since the contribution was made through a carryover basis transaction less than 5 years before the liquidation, the distribution is carried out in the same way.