Comprehension Passage
Directions: The given bar shows the total number of (males + females) working and percentage of males working in five different colleges A, B, C, D and E.

Find the ratio between the number of males working in college B and D to the number of females working in college A and E.
1
4: 5
2
1: 1
3
2: 3
4
3: 2
5
3: 1