Answer:
The Source 1 Which happens to be "The interviewer is a Black man collecting oral histories for the Federal Writers' Project, a federal program in the 1930's that attempted to document the experiences of enslaved people who still survived at that time" would be most reliable source.
This is because, there is a likelihood that, the black man has ancestors (grandfather, grand uncles, relatives etc) who could have being slaves in the 1930's and passed their experience down their generation orally till it reaches him.
Step-by-step explanation: