Mean Current

A sinusoidal alternating supply of peak voltage 100 V is connected to a diode and a 100 ohm resistor in series. The diode is ideal with a zero forward resistance and an infinite reverse resistance. What is the value of the mean current in the resistor?

A. less than 0.5 A
B. 0.5 A
C. 0.7 A
D. 1 A