Use a Calculator to Estimate the Limit $\lim _{x \rightarrow 7} \frac{\sqrt{x-1}}{x-1}$

Multiple Choice

Use a calculator to estimate the limit.
- $\lim _{x \rightarrow 7} \frac{\sqrt{x-1}}{x-1}$

A) 0
B) -1
C) Does not exist
D) 1