Which revision would expand the ideas in the excerpt? adding more specifics about the sailors’ beliefs about the island adding the discussion rainsford and whitney have about hunting adding a description of the island’s inhabitants, zaroff and ivan adding the information about rainsford later going to the island

The revision that would help expand the ideas in the excerpt is adding more specifics about the sailors' beliefs about the island.
The author just mentions their beliefs briefly, but doesn't really expand on that topic, which may be relevant further down in the text. This is why I believe that adding such details is important to include in this essay to make it more detailed and easy to understand.

It's a gift from god that allows people to bear witness to horror.