If |z|/w = 3,which of the following must be true? Select the correct option.
A) z = -3w
B) z = 3w
C) z^2 = 9w^2
D) z^2 = 9w^3
E) z^3 = 27w^3
|z|/w = 3.   |z| = 3w.   Then z = 3w or -3w and so z^2 = 9w^2.   The answer is z^2 = 9w^2.
<result>C</result>
If |z|/w = 3,which of the following must be true?