Steinar loaned a friend $9500 to buy some stock 3 years ago. Inthe current year

Steinar loaned a friend $9500 to buy some stock 3 years ago. Inthe current year the debt became worthless.f. How much is Steinars deduction for the bad debt for this year?(Assume he has no other capital gains or losses.)g. What can Steinar do with the deduction not used this year?