To get the sizes of the objects approximately correct, she chooses a beach volleyball to represent the sun, a marble to represent the earth, and a pea to represent the moon. she calculates that the distance between the earth and the moon should be about 10 centimeters in her model. about how far should the sun be from the earth in franny's model? a) 20 centimeters b) 2.0 meters c)50 meters d)15 centimeters