A research team measured the average time students at three different schools spent reading for pleasure each week. At School A, students read an average of 2.5 hours per week. At School B, the average was 4.1 hours per week. At School C, students averaged 3.3 hours per week. The researchers also noted that School B had recently launched a program that gave students 30 minutes of dedicated reading time during each school day.
Which choice is most effectively supported by the data in the text?