Which of the following is defined to be the point of intersection of the x- and y- axes?A. The xy-planeB. The originC. An ordered pair

The horizontal line is known as the x-axis and the vertical line is called the y-axis.These axes intersect to form four quadrants. The x and y axes are perpendicular to one another, they intersect only once,  so -x and -y both touch the middle which is called the origin.
B. The origin