Study the following graph carefully and answer the questions that follow. Number of Girl students in 000s

What was the ratio between the number girls enrolled in the school-C in the year 2007 and the total number of girls enrolled in school-A and school-B together in the same year?

A. 11 : 3

B. 3 : 11

C. 4 : 11

D. 4 : 7

Please do not use chat terms. Example: avoid using "grt" instead of "great".