Closely analyze and compare the formulas for the circumference of a circle and the area of a circle. Click on your formula reference sheet and your Desmos calculator for reference. Select the THREE true statements. A. π is the area of a circle of radius 1. B. π is the area of a circle of diameter 1. C. π is the circumference of a circle of radius 1. D. π is the circumference of a circle of diameter 1. E. π is the constant of proportionality relating the diameter of a circle to its circumference. F. π is the constant of proportionality relating the radius of a circle to its area.