Which of the following functions matches the power series ∑n=0∞(−1)nx2n+1(2n+1)!\sum_{n=0}^{\infty} \frac{(-1)^n x^{2n+1}}{(2n+1)!}∑n=0∞(2n+1)!(−1)nx2n+1?
cos(x)\cos(x)cos(x)
sin(x)\sin(x)sin(x)
sinh(x)\sinh(x)sinh(x)
arctan(x)\arctan(x)arctan(x)