The given bar graph shows the number of students of two schools over a period of six years.

In the bar graph, what is the ratio of the students taken for the years 2009, 2011, 2013 together from school to the students taken for the years 2008, 2012, 2013 together from school B?

A

17:25

B

18:25

C

25:17

D

25:18