Answer:
B. He should focus on females because the ratio of females to males is 5:2.
Explanation:
By looking at the graph, you can see that there are 25 females and 10 males. The ratio for this is 25:10, but we can simplify by dividing both sides by 5! 25/5=5, and 10/5=2, so the simplified ratio of 25:10 is 5:2. If you look at all of the answer choices, you really don't have to look at the words a lot; there's only one choice that includes the ratio 5:2. That choice is B, so B is the answer!
Hope this helps you out!! Have an amazing day o(*^▽^*)o