English Skills with Readings 7th Edition by John Langan

Exercise 233

Which sentence best expresses the central idea of the selection
A) Electronic entertainment is responsible for childhood obesity.
B) More physical-fitness classes are needed to solve childhood obesity.
C) We need to reduce the role that junk food plays in children's lives and help them acquire good nutritional habits.
D) School lunches are much more nutritious than junk food.