Resistances of 2 $\Omega$ , 40 $\Omega$ , and 60 $\Omega$ And a 24-V Emf Device Are All in Series

Resistances of 2.0 $\Omega$ , 4.0 $\Omega$ , and 6.0 $\Omega$ and a 24-V emf device are all in series.The potential difference across the 2.0- $\Omega$ resistor is:

A) 4 V
B) 8 V
C) 12 V
D) 24 V
E) 48 V