The Components of Vectors $\overrightarrow { \mathrm { B } }$

Multiple Choice

The components of vectors $\overrightarrow { \mathrm { B } }$ and $\overrightarrow { \mathrm { C } }$ are given as follows: $B _ { x }$ = -9.2 $C _ { x }$ = -4.5 $B _ { y }$ = -6.1 $C _ { y }$ = 4.3 The angle (less than 180°) between vectors $\overrightarrow { \mathrm { B } }$ and $\overrightarrow { \mathrm { C } }$ is closest to

A) 77°.
B) 103°.
C) 10°.
D) 170°.
E) 84°.