If R ={ (x,y) : x,y in z, x^(2) +y^(2) l...

If R ={ (x,y) : x,y `in z, x^(2) +y^(2) le 4` } is a relation on `Z ` then domain of R is

A

1) `{0,1,2}`

B

2) `{0,-1,-2}`

C

3) `{-2,-1,0,1,2}`

D

4) `{-2,-1,0,1}`

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The correct Answer is:

C

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