Economic sanctions directly impact the economy of the subjects country. Therefore a trade ban would be an economic sanction. 1 and 4 would be damaging to diplomatic relations but not the economy and 3 is military intervention which is not solely an economic action.
If you really think about it is Everything from what you eat how you dress and even religion.
The success of the boycott led to the development of a national civil rights movement. The NAACP played a key role in the passage of the Civil Rights Act of 1964 and the Voting Rights Act of 1965. The Congress of Racial Equality (CORE) also played an important role in the civil rights movement.
Madison vs Marbury and
Brown vs. the board of education
