Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-Find the measure of an angle whose supplement is 3 times the measure of its complement.

A) $60 ^ { \circ }$
B) $45 ^ { \circ }$
C) $30 ^ { \circ }$
D) $22.5 ^ { \circ }$