The answer would be: <span> instruments, pictures, and ancient writings. Ethnoomusicologists is a field of study that se the development of music from cultural perspective And ethnomusicologist will try to gather several hard evidence of what kind of music that people in the past used (so we could get better understanding on the type of ritual and ceremony that these people did)</span>
I would go with D because Patagonia is a large company and if they want to protect the environment, that’s a responsibility. If that isn’t it A would be my second guess. Hope this helps