Which of the following expressions represents the indefinite integral of f(x)=e4xf(x) = e^{4x}f(x)=e4x?
e4x+Ce^{4x} + Ce4x+C
4e4x+C4e^{4x} + C4e4x+C
14e4x+C\frac{1}{4}e^{4x} + C41e4x+C
e4x/4+Ce^{4x}/4 + Ce4x/4+C