Is this relation a function? Justify your answer. 10 9 8 7 6 5 43 ● 1234567 8 9 10 OA. Yes, because every x-value has a single y-value. OB. Yes, because every x and y-value is positive. OC. No, because two points with the same y-value have different x- values. D. Yes, because the number of x-values is the same as the number of y-values.​