In half wave rectifier if the D.C component at output is $\large\frac{10}{\pi} $$V$ What is the peak value of sinusoidal input signal.

Question

$(a)\;\frac{10}{\sqrt 2} V \\ (b)\;10 \;V \\ (c)\;\frac{20}{\pi} V \\ (d)\;10 \sqrt 2 \;V $