Find the Angle Between the Pair of Vectors to the Nearest

Multiple Choice

Find the angle between the pair of vectors to the nearest tenth of a degree.
- $$9 \mathbf { i } + 8 \mathbf { j } , - 3 \mathbf { i } + 6 \mathbf { j }$$

A) $74.9 ^ { \circ }$
B) $99.3 ^ { \circ }$
C) $158.2 ^ { \circ }$
D) $75.9 ^ { \circ }$