C. more personal. Since he is sincerely introducing his son.
It makes the reader decide for themselves.
Hemingway thought to many adjectives would force the how to feel about things.
Your answer is B., because it is unidentifiable, so if they don't know the source, then why cite it right? :P :D So anyways, that's why your answer is B. =)
I hope I helped! =D
I'm not 100% sure but I believe the answer is B.
Answer:
Both are important of coarse. In different cases different persons are important in different ways. But from my point of view both are important
Hope it helps! :)