If regent tax services' office supplies account balance on march 1 was $ 1400 , the company purchased $ 675 of supplies during the month and recorded the purchase in the office supplies account, and the physical count of supplies on hand at the end of march indicated $1,250 ununsed . What is the amount of the adjusting entry for office supplies on march 31
a. 675
b. 825
c. 1250
d 1975