Which of the Following Is Not a Finding of Witkow's

Which of the following is not a finding of Witkow's recent study that investigated the ways in which adolescents use their time?

A) Students who earn higher grades than their peers spend more time studying, both on weekdays and on weekends.
B) High-achieving students spend less time with their friends than do low-achieving students on weekdays, but not on weekends.
C) Study results suggest that high-achieving students are able to maintain an active social life by allocating time more judiciously during the week.
D) High-achieving students spend equal time with their friends than do low-achieving students on weekdays.