Find the Magnitude of the Vector $\mathbf { v }$ $$\mathbf { v } = \langle - 4,0 , - 8 \rangle$$

Multiple Choice

Find the magnitude of the vector $\mathbf { v }$ .
$$\mathbf { v } = \langle - 4,0 , - 8 \rangle$$

A) $- 12$
B) 12
C) $2 \sqrt { 3 }$
D) $8 \sqrt { 5 }$
E) $4 \sqrt { 5 }$