Answer:
People accept it in exchange for goods or services
Explanation:
The first option is incorrect because the amount of people discussing a topic does not give something value. If a majority of people agree that money has value, there is still the minority who will not except its value. The second option is also incorrect because it is no longer backed by gold. The final option is also wrong because an items security measures do not declare that items value. This leaves the third option to be correct. Today, people accept country's money because they know it has value. It is accepted.
