Q.
A. p2 + 2pq2 + q2 + q2 = 100
B. p2 + 2p + 2q + q2 = 1
C. p2 - 2pq + q2 = 1
D. p2 + 2pq + q2 = 1
E. None of the above
Correct choice: D
Explanation: