A periodic signal x(t) of period T0 is given by x(t) =1,

A periodic signal x(t) of period T₀ is given by
x(t) = 1, |t| < T,
0, T₁ < |t| < T₀/2

The d.c. component of x(t) is—

The given waveform like

The d.c. component of x(t) is

=	1		^T₀/2	x(t).dt
	T₀		_{– T₀/2}

=	1		^T₁	1.dt =	2T₁
	T₀		_{– T₁}		T₀

Hence, alternative (C) is correct choice.

x(t) =		1, \|t\| < T,
		0, T₁ < \|t\| < T₀/2