Q.
A. 2x+y+7=0,2x+y-9=0
B. 2x+y-7=0,2x+y+9=0
C. 2x-y-7=0,2x+y-9=0
D. 2x-y+7=0,2x-y+9=0
E. None of the above
Correct choice: C
Explanation: