The area enclosed between the straight line $y=x$ and the parabola $y=x^{2}$ in the $x$ -y plane is
(A) $1 / 6$
(B) $1 / 4$
(C) $1 / 3$
(D) $1 / 2$
The area enclosed between the straight line $y=x$ and the parabola $y=x^{2}$ in the $x$ -y plane is
(A) $1 / 6$
(B) $1 / 4$
(C) $1 / 3$
(D) $1 / 2$