Write the conjugate 
of the complex number z. Then find z
.z = 2 - 9i
A. 
= 2 + 9i, z
= 4 - 81i2
B. 
= 2 + 9i, z
= -77
C. 
= 2 + 9i, z
= 4 - 81i
D. 
= 2 + 9i, z
= 85
Answer: D
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