following plans for the division of income are being considered: a. Equal division. b. In the ratio of original investments. c. In the ratio of time devoted to the business. d. Interest of 6% on original investments and the remainder equally e. Interest of 6% on original investments, salary allowances of $40,000 to Morrison and $70,000 to Greene, and the remainder equally f. Plan (e), except that Greene is also to be allowed a bonus equal to 20% of the amount by which net income exceeds the total salary allowances Required