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Let D is a point on the line `l_(1):x+y-2=0, S(3, 3)` is a fixed point and line `l_(2)` is the perpendicular to DS and passing through S. If MK is another point on the line `l_(1)` (other than D), then the locus of the point of intersection of `l_(2)` and angle bisector of the angle MDS is a conic whose length of latus rectus rectum is equal to

A

`4sqrt2`

B

4

C

8

D

`2sqrt2`

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The correct Answer is:
A
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