Questions about example sentences with, and the definition and usage of "Above"

A: "none" means no to all of the questions ("none of the above" means no to all of the answers above it)

"all of the above" means yes to all of the answers above it

example
Q: what color is the sky?
a) green
b) orange
c) pink
d) none/none of the above
[answers a, b, and c are all wrong]

Q: what animal lives in the ocean?
a) fish
b) shark
c) dolphin
d) all of the above
[answers a, b, and c are all correct]

A: It means all of the answers that are "above" D (So the answer would be A, B, and C).
All of the above is usually placed as the last answer option so it means "all of the answers"

A: All answers or options that are available

A: Normally used when there are different options for something, it is used to say "I choose all the options available"

A: It usually refers to the previously written instructions/notes.