Which of the following is not an example of containment

What was the u.s. government's office of indian affairs responsible for doing?

How do media use "telling details" to audiences better connect with a story?

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.