Using the following information, compute the direct materials used.

Raw materials inventory, January 1 $ 20,000

Raw materials inventory, December 31 40,000

Work in process, January 1 18,000

Work in process, December 31 12,000

Finished goods, January 1 40,000

Finished goods, December 31 32,000

Raw materials purchases 1,400,000

Direct labor 560,000

Factory utilities 150,000

Indirect labor 50,000

Factory depreciation 400,000

Operating expenses 420,000

a. $1,460,000.

b. $1,420,000.

c. $1,400,000.

d. $1,380,000.

Why it's D ????