The Temperature Is $47^{\circ} \mathrm{F}$ At 2:00 in the Afternoon $7^{\circ} \mathrm{F}$

Multiple Choice

The temperature is $47^{\circ} \mathrm{F}$ at 2:00 in the afternoon. If the temperature drops $7^{\circ} \mathrm{F}$ every hour after that, what is the temperature at 10:00 in the evening?

A) $9^{\circ} \mathrm{F}$
B) $-2^{\circ} \mathrm{F}$
C) $-56^{\circ} \mathrm{F}$
D) $56^{\circ} \mathrm{F}$
E) $-9^{\circ} \mathrm{F}$