The difference was that the United States was not taking any action against the attackers before the attacks, but after them, they got involved in fighting against them.
The correct answer is I belive b and c
Economics is a social science which deals with the study of
how goods and services are produced, distributed, and consumed. It analyses how
people, enterprises, countries, and governments come up with options on how to
allocate resources so as to satisfy their
wants and needs effectively. It also tries
to assess how these parties are supposed to organize and manage efforts so as
to acquire maximum output
Someone who is their own boss / started their own business!
