What is the domain of the following list of ordered pairs?

(-2,1),(2,0),(-1,-3),(4,6) A. (-3, 1,6) B. (-3,-2,-1,0, 1, 2, 4, 6)C. (-2,-1,2,4)D. (-3,0, 1,6)

What is the domain of the following list of ordered pairs?

(-2,1),(2,0),(-1,-3),(4,6) A. (-3, 1,6) B. (-3,-2,-1,0, 1, 2, 4, 6)C. (-2,-1,2,4)D. (-3,0, 1,6)