An AC Voltage Source, with a Peak Output of 120 $\Omega$

Multiple Choice

An AC voltage source, with a peak output of 120 V, results in dissipation of energy in a resistor at rate of 50.0 W. What is the value of the resistance?

A) 100 $\Omega$
B) 120 $\Omega$
C) 144 $\Omega$
D) 72.0 $\Omega$