If a point $R ( 4 , y , z )$ lies on the line segment joining the points $P ( 2 , - 3 , 4 )$ and $Q ( 8 , 0 , 10 )$, then the distance of $R$ from the origin is (1) $2 \sqrt { 21 }$ (2) $\sqrt { 53 }$ (3) 6 (4) $2 \sqrt { 14 }$
If a point $R ( 4 , y , z )$ lies on the line segment joining the points $P ( 2 , - 3 , 4 )$ and $Q ( 8 , 0 , 10 )$, then the distance of $R$ from the origin is\\
(1) $2 \sqrt { 21 }$\\
(2) $\sqrt { 53 }$\\
(3) 6\\
(4) $2 \sqrt { 14 }$