The Distance Between $P _ { 1 } = ( 5,6 , - 1 )$

Multiple Choice

The distance between $P _ { 1 } = ( 5,6 , - 1 )$ and $P _ { 2 } = ( 3,8,2 )$ is

A) $\sqrt { 15 }$
B) 4
C) $\sqrt { 17 }$
D) $3 \sqrt { 2 }$
E) $\sqrt { 19 }$