Trisha graphed the relationship between yards and feet, with yards along the x-axis and feet along the y-axis. The relationship is proportional. Which statement is true about the point (x, y) on the graph? A) If x is 0, y must be the number of feet in a yard. B) If y is 0, x must be the number of feet in a yard. C) If x is 1, y must be the number of feet in a yard. D) If y is 1, x must be the number of feet in a yard.