Answer:
D. It decreased by $57,000. 
Step-by-step explanation:
Given that
Cash increased = $40,000
Total liabilities increased = $32,000
Other asset decreased = $65,000
We know that
Total assets = Total liabilities + stockholder equity
where, 
Total assets = -$65,000 + $40,000
 = -$25,000
So, 
-$25,000 = $32,000 + stockholder equity
So, the stockholder equity would be
= -$25,000 - $32,000
= -$57,000