The bar graph given below shows the sales of books (in thousand) from three branches of a publishing company during the years.What is the average selling of comics books (in thousand) over the years?

The bar graph given below shows the sales of books (in thousand) from

1.	The bar graph given below shows the sales of books (in thousand) from three branches of a publishing company during the years.What is the average selling of comics books (in thousand) over the years?
A.	64
B.	72
C.	56
D.	81
Answer» B. 72