a. The Palmertown Elementary School has 30 classrooms. The children in the school donate used books to sell at an annual fundraising book fair. Write a program that accepts each teacher’s name and the number of books donated by that teacher’s classroom. Display the names of the four teachers whose classrooms donated the most books.

b. Modify the book donation program so that, besides the teacher’s name and number of books donated, the program also accepts the number of students in each classroom. Display the names of the teachers whose classrooms had the four highest ratios of book donations per student.