For the complex number, state the real part, the imaginary part, and identify the number as real, pure imaginary, or nonreal complex.5?
A. Real part: 5; Imaginary part: ?; Pure imaginary
B. Real part: ?; Imaginary part: 5; Real
C. Real part: 0; Imaginary part: 5?; Pure imaginary
D. Real part: 5?; Imaginary part: 0; Real
Answer: D
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