Assertion (A) : The equation ax+by+s=0 r...

Assertion (A) : The equation `ax+by+s=0` represents a plane parallel to z-axis.
Reason (R ) : If the plane `ax+by+cz+d=0` perpendicular to the xy-plane then `c=0`.

A

Both (A) and (R) are true R is correct reason of A

B

Both (A) and (R) are true R is not correct reason of A

C

(A) is true but (R) is false

D

(A) is false but (R) is true

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The correct Answer is:

A

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