The bar graph given below shows the sales of books (in thousand number) from six branches of a publishing company during two consecutive years 2000 and 2001.



Total sales of branch B6 for both the years is what percent of the total sales of branches B3 for both the years?

1. A
   $68.54\%$
2. B
   $71.11\%$
3. C
   $73.17\%$
4. D
   $75.55\%$