The Figure Shows Variation of the Current Through the Heating $\varOmega$

Multiple Choice

The figure shows variation of the current through the heating element with time in an iron when it is plugged into a standard 120 V, 60 Hz outlet.
-What is the resistance of the iron?

A) 24 $\varOmega$
B) 7.1 $\varOmega$
C) 17 $\varOmega$
D) 12 $\varOmega$
E) 1.8 $\varOmega$