Modern history: geographic thinking need on this ! my mind went blank on this one. i will mark whoever gets the correct answer the brainliest answer.

Which statement describes domestic terrorism?

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.

What are some incentives that parties have to carry out their campaign promises?