Described Sprite in complete sentence

the correct answer is:

this is an example of the writer telling through description rather than showing through dialogue.

sometimes writers like to explain explicitely what's happening instead of adding dialogues of the situations., which is the case in this passage,

i think the answer is d.

your answer is c) experiments with water vapor showed that elements combine in specific proportions.

i'm thinking it would be when compound subjects are joined by or, nor,either-or, neither-nor.