i need help plssss! Help me quick i need the answer plss and thank you!

Answer:
40%
Step-by-step explanation:
So, there are 60 students for B. So, what I did was add all the students to get 150. Then I divided 60 by 150 (60/150) to get 0.4. 0.4 * 100 is 40 which is the percent. Hope this helps.