On January 1, 2007, the ledger of Conglomo Corporation correctly showed supplies

inventory of $900. During 2007, supplies purchases amounted to $6,000. A count

(inventory) of supplies on hand at December 31, 2007, showed $1,800. The 2007 income

statement should report supplies expense amounting to

A) $6,000

B) $1,800

C) $5,100

D) $6.900

E) None of the above is correct

explain in detail?