Find the Area of the Parallelogram $P _ { 1 } ( 0,0,0 ) , P _ { 2 } ( 2 , - 4,1 ) , P _ { 3 } ( - 1,2 , - 1 )$

Multiple Choice

Find the area of the parallelogram.
- $P _ { 1 } ( 0,0,0 ) , P _ { 2 } ( 2 , - 4,1 ) , P _ { 3 } ( - 1,2 , - 1 )$

A) $\sqrt { 6 }$
B) $\sqrt { 41 }$
C) $\sqrt { 5 }$
D) $\sqrt { 21 }$