What would be considered a secondary source about the assasination of abraham lincoln

A secondary source could be someone that maybe discovered the body or is doing evaluations to see why or how he died, like a doctor for instance it would be a secondary source becausethe doctor was not there and he did not watch soand if he wrote about it then that would be a secondary source! :) <3 hope this helps!

c) legal battles last five weeks after the election due to the narrow victory in several states.

i think the answer is a and i hope this ; ))