Medium
The circles $x^2+y^2-2x-4y-4=0$ and $x^2+y^2+2x+4y-11=0$:
- ACut each other orthogonally
- Bdo not meet
- Cintersect at the points lying on the line $4x+8y-7=0$
- Dtouch each other at the point lying on the line $4x+8y-7=0$
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