"c. A narrative source" is what a historian would use to get a firsthand account of a past event, since in these sources (which are also primary sources) a person is giving a first-hand account of the event itself.
The Saguenay river on the gulf of st Lawrence
A because the ratio from black to white near close to equal
Answer:
I really don't know. as I am first here so that I am unable to answer you right now but I can assure you I will answer you soon.