Q.
A. 3x2 + 4y2 - 42x + 120 = 0
B. 3x2 + 4y2 + 42x + 120 = 0
C. 3x2 + 4y2 + 42x - 120 = 0
D. 3x2 + 4y2 - 42x - 120 = 0
E. None of the above
Correct choice: A
Explanation: