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what is the range of the relation?

number graph ranging from negative six to four on the x axis and negative six to six on the y axis. the points (negative four, negative two), (negative two, negative three), (one, zero) and (two, two) are labeled on the graph.

a.
{–3, –2, 0, 2}

b.
{–3, 3}

c.
{–4, –2, 1, 2}

d.
{–4, –3, –2, 1, 0, 2}