1. Learning how to ride a bike as children and mount their first bicycle with
training wheels
mounted on the sides of the back tires. Those training wheels
eventually come off. When that happens, usually someone runs
behind the bicycle, holding the back of the seat as the rider
learns to balance on two wheels. As the runner runs back and
forth down the street, the rider eventually picks up on how to
lean to stay up on two wheels. Eventually, the runner lets go of
the seat, and the rider rides off on his or her own.
What is the central idea of this passage?
A
learning how to run behind a new rider
B
how to take training wheels off a bicycle
learning how to ride a two wheel bicycle

C
Learning how to ride a two wheel bicycle

D none of the above