Solve the Problem $V=I R$ , Where $V=$ Voltage $I$ = Current, And $R=$

Multiple Choice

Solve the problem.
-Electrical systems are governed by Ohm's law, which states that $V=I R$ , where $V=$ voltage, $I$ = current, and $R=$ resistance. If the current in an electrical system is decreasing at a rate of $7 \mathrm{~A} / \mathrm{s}$ while the voltage remains constant at $20 \mathrm{~V}$ , at what rate is the resistance increasing when the current is $60 \mathrm{~A}$ ?

A) $\frac{3}{7} \mathrm{ohms} / \mathrm{s}$
B) $\frac{7}{180} \mathrm{ohms} / \mathrm{s}$
C) $\frac{49}{3} \mathrm{ohms} / \mathrm{s}$
D) $\frac{7}{3} \mathrm{ohms} / \mathrm{s}$