The branch later returned goods worth N1,200 at invoice price to the head office. The profit marginal should be?

Use the information below to Answer questions 46 and 47.
Among Limited invoiced goods at a cost of N10,000 to its Ikeja branch at a marginal of 20%. The branch later returned goods worth N1,200 at invoice price to the head office.
The profit marginal should be?

A debit to goods sent to branch account

B debit to branch stock adjustment account

C credit to branch adjustment account

D credit to branch stock adjustment account

Answer is D