Which option is the best example of central idea?(1 point)

The story takes place in a small town and includes a conflict between a baseball coach and his players. 
The story takes place in a small town and includes a conflict between a baseball coach and his players. 

Knowledge can be a powerful mover of change.
Knowledge can be a powerful mover of change.

A group of baseball players change their minds about their coach after they learn why hs is so strict. 
A group of baseball players change their minds about their coach after they learn why hs is so strict. 

Change can be a difficult process.

Change can be a difficult process.