Which One of These Is the Best Example of Overgeneralization

Multiple Choice

Which one of these is the best example of overgeneralization?

A) Uri times himself when he swims laps because he wants to improve his speed.
B) Russ takes his teddy bear out for a walk because he has heard that pets need exercise.
C) Yolanda thinks she should not go to medical school because she wants to have children and, "You can't be a mom and a doctor, too."
D) Barbara wants to take four science classes her first semester in college because she intends to major in science.