Write the following numbers in the polar form r[cos(θ) + isin(θ)], 0° < θ < 2π:
(A) 17
A. 17[cos(0) + isin(0)]
B. 17[cos(π/2) + isin(π/2)]
C. 17[cos(π) + isin(π)]
D. 17[cos(3π/2) + isin(3π/2)]