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 years the 2008, 2012, 2013 together from school A to the students taken for the years 2009, 2010, 2011 together from school B?

A

118 : 251

B

229 : 217

C

251 : 118

D

217 : 229