Respuesta :
The correct options are:
1st: They use a primary source to show that some white people opposed the idea of freeing enslaved people. This primary source could have been written in diaries or memories by the same participants or people from those times.
2nd: They use a secondary source to show that the British secretary of war opposed involuntary servitude.This secondary source could have been found as a historical document in a library.
The authors use historical evidence such as primary and secondary sources to support their claim. While primary sources are produced by the participants or observers when the event took place (e.g. diaries, journals, memoirs, autobiographies), the secondary sources are produced when the historians use the information brought by the primary sources in order to write about a specific topic (e.g. a history book).
Hope it helped