Rice, Hepburn, and DiMarco formed a partnership with Rice contributing $60,000, Hepburn contributing $50,000 and DiMarco contributing $40,000. Their partnership agreement called for the income (loss) division to be based on the ratio of capital investments. If the partnership had income of $75,000 for its first year of operation, what amount of income (rounded to the nearest dollar) would be credited to DiMarco's capital account?
a) $20,000
b) $25,000
c) $30,000
d) $40,000
e) $75,000