-What Do Discs, Like the Kind Shown in the Accompanying

-What do discs, like the kind shown in the accompanying figure, usually measure?

A) 3.5 inches in diameter and less than one-twentieth of an inch thick
B) 4.75 inches in diameter and less than one-twentieth of an inch thick
C) 3.5 inches in diameter and more than one-twentieth of an inch thick
D) 4.75 inches in diameter and more than one-twentieth of an inch thick