If f(x)=sin(ex2)f(x) = \sin(e^{x^2})f(x)=sin(ex2), which expression correctly represents f′(x)f'(x)f′(x)?
\cos(e^{x^2}) \cdot e^{x^2} \cdot 2x
\cos(e^{x^2}) \cdot 2x
\cos(e^{x^2}) \cdot e^{x^2}
e^{x^2} \cdot 2x