For the Year Ended December 31,2013,David,a Married Taxpayer Filing a Joint

For the year ended December 31,2013,David,a married taxpayer filing a joint return,reported the following: In vestment income from interest $\quad \$ 24,000$
In vestment expenses other than interest $\quad\$ 4,000$
Interest expense on funds borrowed in 2005 to purchaseinvestment property $\quad\$ 70,000$ What is the maximum amount that David can deduct in 2013 as investment interest expense?

A) $7,000
B) $20,000
C) $21,000
D) $24,000
E) None of the above