Solve the Problem $P ( A ) = 0.22$ And $P ( B ) = 0.36$

Multiple Choice

Solve the problem.
-Suppose that $P ( A ) = 0.22$ and $P ( B ) = 0.36$ , find $P ( A \cup B )$ if $A$ and $B$ are mutually exclusive.

A) $0.0792$
B) 0
C) $0.5008$
D) $0.58$