49. The following chart summarizes lacob's transactions which occur during the 2021 year. Transaction Date Jan.1 $100,000 proceeds of debt deposited in a checking account. April 1 $20,000 of the funds are used to make a passive activity investment. October 1 $40,000 is used to make a personal expenditure. How should the debt be properly allocated from April 1, 2021 to September 30, 2021 in determining interest expense? a. $80,000 to an investment and $20,000 to a passive activity b. $40,000 to an investment, $40,000 to a personal expenditure, and $20,000 to the passive activity c. $100,000 to an investment d. $80,000 to a personal expenditure and $20,000 to a passive activity e. Debt cannot be allocated until the tax year has ended