If `R={(x , y): x , y in Z , x^2+y^2lt=4}` is a relation on Z,`\ ` then domain of `R` is `{0,1,2}` b. `{0,-1,-2}` c. `{-2,-1,0,1,2}` d. none of these

Options

A. {0,1,2}
B. {-2,-1,0}
C. {-2,-1,0,1,2}
D. None of these

Answer

C