The following information was taken from the financial statements of the Eric Corporation. All dollar amounts are in billions.

Assets, 12/31/02 $700

Common Stock, 12/31/02 $110

Dividends, 1/1/02-12/31/02 $15

Expenses, 1/1/02-12/31/02 $180

Liabilities, 12/31/02 $400

Retained Earnings, 12/31/02 $190

Revenues 1/1/02-12/31/02 $220

Determine the net dollar amount by which the Corporation's resources changed through management operations in 2002.

a. $190

b. $40

c. $25

d. $220