Let $z = x + i y$ be a complex number, which satisfies the equation $( z + \bar { z } ) z = 2 + 4 i$. Then (A) $y = \pm 2$. (B) $x = \pm 2$. (C) $x = \pm 3$. (D) $y = \pm 1$.
Let $z = x + i y$ be a complex number, which satisfies the equation $( z + \bar { z } ) z = 2 + 4 i$. Then\\
(A) $y = \pm 2$.\\
(B) $x = \pm 2$.\\
(C) $x = \pm 3$.\\
(D) $y = \pm 1$.