PLEASE HELP I NEED THIS RIGHT AWAY is this relation a function? Justify your answer.
A. no, because two points with the same y- value have different X- values.
B. yes, because every X- and Y- value is positive.
C. no, because two points with the same x- value have different y- values.
D. yes, because the number of X- values is the same as a number of Y- values. ​