What is the main subject of this passage

A．He thought that he would either find a good job or he would be a thief.
B．He said that he would become rich by way of robbing the bank.
C．He said that he could rob the rich of their money.
D．He might be rich if he worked harder.

A．She’s got good results in all subjects.
B．She has no clear idea about all the results.
C．She hasn’t got very good results in some subjects.
D．She doesn’t care about them at all.