Use Integration to Find a General Solution of the Differential $\frac { d y } { d x } = 5 x ^ { 3 } + x$

Multiple Choice

Use integration to find a general solution of the differential equation.
$\frac { d y } { d x } = 5 x ^ { 3 } + x$

A) $y = 5 x ^ { 4 } + x ^ { 2 } + C$
B) $y = \frac { 5 } { 4 } x ^ { 4 } + \frac { 1 } { 2 } x ^ { 2 } + C$
C) $y = 5 x ^ { 2 } + 1 + C$
D) $y = 15 x ^ { 2 } + 1 + C$
E) $y = \frac { 5 } { 4 } x ^ { 4 } + \frac { 1 } { 2 } x ^ { 2 } + x + C$