Parents shpuld set a good example for their children by always telling the truth. While it is sometimes tempting to try to get by with a lie, children watch what their parents do in real life. If a chuld hears a parent lie he will think that lying is acceptable.

What is the main idea of this passage?
A. Parents should set a good example for their children
B. Children should watch their parents and do what they do.
C. Parents should let their children hear them tell the truth
D. Children will not lie if their parents don't lie