Direction: Read the following table carefully and answer the following questions: The table shows the total number of students and the number of girls in three schools A, B & C in two consecutive years.

Find the ratio of the total number of boys of school A and B together in year 1999 to the number of boys of school B and C together in 2000.

Options

A. `35:47`
B. `37:45`
C. `45:37`
D. `47:35`