Determine the Limit (If It Exists) $$\lim _ { x \rightarrow 0 } \frac { \sin ^ { 4 } x } { x ^ { 3 } }$$

Multiple Choice

Determine the limit (if it exists) . $$\lim _ { x \rightarrow 0 } \frac { \sin ^ { 4 } x } { x ^ { 3 } }$$

A) 1
B) 0
C) 2
D) $\infty$
E) does not exist