What is the result of the ratio test for ∑n=1∞3nn!\sum_{n=1}^{\infty} \frac{3^n}{n!}∑n=1∞n!3n?
L=0L = 0L=0
L=1L = 1L=1
L=∞L = \inftyL=∞
L=3L = 3L=3