A point on the parabola whose focus is S...

A point on the parabola whose focus is `S (1,-1)` ans whose vertex is `A(1,1)` is

A

1) `(3, (1)/(2))`

B

2) `(1,2)`

C

3) `(2, (1)/(2))`

D

4) `(2,2)`

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The correct Answer is:

A

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