?Find the Magnitude of Vector V with Initial Point (7,5)and $10 \sqrt { 2 }$

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) ? $2 \sqrt { 51 }$