AMR Finance has assets of $50,000, equity of $5,000 and a leverage-adjusted duration gap (DGAP) of -2.50 years. Current interest rates are 3%, What level of interest rate change (R) would wipe away AMR's equity capital?

A. + 4.12%

B. - 4.12%

C. + 2.5%

D. None of the above.