APFIVE Maclaurin Series for the Exponential Function
Which of the following represents the Maclaurin series for the function $e^x$?
A
$$e^x = \sum_{n=1}^{\infty} \frac{x^n}{n!}$$
B
$$e^x = 1 + x$$
C
$$e^x = \sum_{n=0}^{\infty} \frac{(-1)^n x^n}{n!}$$
D
$$e^x = \sum_{n=0}^{\infty} \frac{x^n}{n!}$$