mr. smith Borrows ＄500 now AnD pAys FilE monEy hACk nExt yEAr whEn priCEs hAvE DouBlED, thEn how muCh will hE BE pAying BACk in tErms oF rEAl purChAsing powEr mEAsurED By thE monEy vAluE oF this yEAr .
A、＄500.C、＄1000. B、＄250.D、＄750
A．mr. smith Borrows ＄500 now AnD pAys FilE monEy hACk nExt yEAr whEn priCEs hAvE DouBlED, thEn how muCh will hE BE pAying BACk in tErms oF rEAl purChAsing powEr mEAsurED By thE monEy vAluE oF this yEAr .
B、＄500.
C．＄250.
D、＄1000.
E．＄750