Describe How to Transform the Graph of F into the Graph

Multiple Choice

Describe how to transform the graph of f into the graph of g.
- $f ( x ) = \sqrt { x }$ and $g ( x ) = 6 \sqrt { x }$

A) Horizontally stretch the graph of $f$ by a factor of 6 .
B) Vertically stretch the graph of $\mathrm { f }$ by a factor of $6 .$
C) Vertically shrink the graph of $\mathrm { f }$ by a factor of $\frac { 1 } { 6 }$ .
D) Horizontally shrink the graph of $f$ by a factor of $\frac { 1 } { 6 }$ .