Find the Sum, If It Exists, of the Terms of the Infinite

Multiple Choice

Find the sum, if it exists, of the terms of the infinite geometric sequence.
- $\sum_{i=1}^{\infty} \frac{4}{3}\left(\frac{1}{3}\right) ^{i-1}$

A) $\frac{4}{3}$

B) $\frac{1}{2}$

C) 2

D) Does not exist