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Let the plane 2x+3y+z+20=0 be rotated th...

Let the plane `2x+3y+z+20=0` be rotated through a right angle about its line of intersection with the plane `x-3y+5z=8`. If the mirror image of the point `(2,-(1)/(2),2)` in the rotated plane is B(a, b, c), then :

A

`(a)/(8)=(b)/(5)=(c)/(-4)`

B

`(a)/(4)=(b)/(5)=(c)/(-2)`

C

`(a)/(8)=(b)/(-5)=(c)/(4)`

D

`(a)/(4)=(b)/(5)=(c)/(2)`

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