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.
- $$\langle - 5 , - 7 \rangle , \langle 6 , - 4 \rangle$$

A) $45.9 ^ { \circ }$
B) $91.8 ^ { \circ }$
C) $101.8 ^ { \circ }$
D) $35.9 ^ { \circ }$