Use a Calculator to Estimate the Limit $\lim _{x \rightarrow 49} \frac{\sqrt{x}-\sqrt{7}}{x-49}$

Multiple Choice

Use a calculator to estimate the limit.
- $\lim _{x \rightarrow 49} \frac{\sqrt{x}-\sqrt{7}}{x-49}$

A) 0
B) $\frac{\sqrt{7}}{14}$
C) $2 \sqrt{7}$
D) Does not exist