In the current year, John Barraclough has $50,000 of adjusted gross income, a $10,000 casualty loss and a $2,000 casualty gain. How much is John's net deductible casualty loss after making all appropriate reductions, assuming the casualty was associated with a federally declared disaster?

a. $0

b. $2,900

c. $3,000

d. $7,900

e. $8,000