Choose the correct answer in the area lying between the curves $y^2 = 4x$ and $y = 2x$ is

Question

$$\begin{array}{1} (A) \;\frac{2}{3} \qquad & (B)\; \frac{1}{3} \qquad &(C)\; \frac{1}{4} \qquad & (D)\; \frac{3}{4} \end{array}$$