Analysis of Books Read by Students

The bar graph below illustrates the number of books read by students in a month across three different grades: Grade 9, Grade 10, and Grade 11. The vertical axis represents the number of books read, while the horizontal axis shows the grades. In this month, Grade 9 students read a total of 120 books, Grade 10 students read a total of 150 books, and Grade 11 students read a total of 100 books.

Based on the data presented in the graph, which of the following statements is correct?