Maybe a cappella because it's created with all voices and lacks the help of instruments.
Answer:
It will decrease the depth of field, then making the background blurry.
Answer:
Buy furniture, blinds, technology, etc, that was produced in 1961.
They would likely have to be bought secondhand if you want them to be authentic since I doubt stores would stock old furniture. (Maybe thrift, I dont know)
Explanation:
I think the answer is d. all of the above
