For the current tax year, Justin, a married taxpayer filing a joint return, reported the following:

Investment income from interest $24,000 Investment expenses other than interest 3,000 Interest expense on funds borrowed 10 years ago to purchase investment property 70,000

What is the maximum amount that Justin can deduct in the current year as investment interest expense? a. $21,000 b. $24,000 c. $20,000 d. $7,000