Mary’s top book shelf holds five books with the following widths, in centimeters: 6, \dfrac{1}{2}, 1,2.5, and 10 . What is the average book width, in centimeters?

**Answer Choices**

A. 1

B. 2

C. 3

D. 4

E. 5

Mary’s top book shelf holds five books with the following widths, in centimeters: 6, \dfrac{1}{2}, 1,2.5, and 10 . What is the average book width, in centimeters?

**Answer Choices**

A. 1

B. 2

C. 3

D. 4

E. 5