Find the Magnitude of Vector V with Initial Point (7 $10 \sqrt { 2 }$

Multiple Choice

Find the magnitude of vector v with initial point (7, 5) and terminal point (-3, -5) .

A) $10 \sqrt { 2 }$
B) 14
C) $20 \sqrt { 2 }$
D) $\sqrt { 74 }$
E) $2 \sqrt { 51 }$