Find the Limit, If It Exists $$\lim _ { h \rightarrow 0 } \frac { 7 x + h } { x ^ { 3 } ( x - h ) }$$

Multiple Choice

Find the limit, if it exists.
- $$\lim _ { h \rightarrow 0 } \frac { 7 x + h } { x ^ { 3 } ( x - h ) }$$

A) $\frac { 7 } { x ^ { 4 } }$
B) $\frac { 7 } { x ^ { 3 } }$
C) Does not exist
D) $7 x$