Find the Component Form and Magnitude of the Indicated Vector $\mathrm { P } = ( - 1,7 )$

Find the component form and magnitude of the indicated vector.
-Given that $\mathrm { P } = ( - 1,7 )$ and $\mathrm { Q } = ( - 2,10 )$ , find the component form and magnitude of the vector $\overrightarrow { \mathrm { PQ } }$ .

A) $\langle - 1,3 \rangle , 10$
B) $\langle - 3,3 \rangle , \sqrt { 18 }$
C) $( 1 , - 3 \rangle , \sqrt { 10 }$
D) $\langle - 1,3 \rangle , \sqrt { 10 }$