Find Real Numbers a and B Such That the Equation $a + b i = - 8 + 18 i$

Multiple Choice

Find real numbers a and b such that the equation is true.
$a + b i = - 8 + 18 i$

A) $a = - 12 , b = 22$
B) $a = - 10 , b = 20$
C) $a = - 11 , b = 21$
D) $a = - 9 , b = 19$
E) $a = - 8 , b = 18$