Write the Complex Number in Polar Form $$- 15 + 20 \mathrm { i }$$

Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
- $$- 15 + 20 \mathrm { i }$$

A) $25 \left( \cos 53.1 ^ { \circ } + i \sin 53.1 ^ { \circ } \right)$
B) $25 \left( \cos 126.9 ^ { \circ } + i \sin 126.9 ^ { \circ } \right)$
C) $25 \left( \cos 306.9 ^ { \circ } + i \sin 306.9 ^ { \circ } \right)$
D) $25 \left( \cos 233.1 ^ { \circ } + \mathrm { i } \sin 233.1 ^ { \circ } \right)$