Corbin has a $15,000 basis in his 50 percent ownership in an S corporation and lent the corporation $5,000 last year. The corporation has $30,000 of other debt. This year the corporation reported a $100,000 loss. How much of this loss may Corbin deduct? Select one:

a. $50,000

b. $20,000

c. $15,000

d. $35,000