Find All Possible Functions with the Given Derivative $y ^ { \prime } = 4 x ^ { 2 } + 1$

Multiple Choice

Find all possible functions with the given derivative.
- $y ^ { \prime } = 4 x ^ { 2 } + 1$

A) $x + C$
B) $\frac { 4 } { 3 } x ^ { 3 } + C$
C) $\frac { 4 } { 3 } x ^ { 3 } + x + C$
D) $8 x + C$