Give a Set of Symmetric Equations for the Line Containing $( 2,1,1 ) \text { and } ( 4,3,2 )$

Essay

Give a set of symmetric equations for the line containing the points $( 2,1,1 ) \text { and } ( 4,3,2 )$
A) $\frac { x - 2 } { 2 } = \frac { y - 1 } { 2 } = z - 1$
B) $x - 1 = \frac { 3 - y } { 2 } = \frac { z - 2 } { 2 }$
C) $x - 1 = \frac { y - 3 } { 2 } = \frac { z - 2 } { 2 }$
D) $x - 1 = \frac { y - 2 } { 3 } = \frac { z - 2 } { 2 }$