Area eclosed by $\mathbf { 4 } \mathbf { x } ^ { \mathbf { 2 } } + \mathbf { y } ^ { \mathbf { 2 } } \leq \mathbf { 8 }$ and $\mathbf { y } ^ { \mathbf { 2 } } \leq \mathbf { 4 x }$ (in square unit) is
(A) $\left( \pi + \frac { 4 } { 3 } \right)$ sq. unit
(B) $\left( \pi - \frac { 4 } { 3 } \right)$ sq. unit
(C) $\left( \pi + \frac { 2 } { 3 } \right)$ sq. unit
(D) $\left( \pi - \frac { 2 } { 3 } \right)$ sq. unit