Answer:
$11,977
Step-by-step explanation:
The difference between the balance of the total checks written and balance of the total checks presented for withdrawal gives the amount outstanding.
As such, amount of outstanding checks at the end of December is the net of the balance of the checks written in November and December and the balance of the checks presented in the same period.
This is
= $43300 + $59239 - $39630 - $50932
= $11,977