Can you use one phrase to summarize the main idea of the whole passage

A．To find another apartment.
B．To talk to Ms. Black.
C．To ask Tom to repair the dishwasher.
D．To buy Tom a new dishwasher for the owner.

A．It has helped to find some criminals.
B．It has found most criminals.
C．It has freed all the innocent people from prison.
D．It has freed some innocent people from prison.