"My school offers four science classes: chemistry, biology, physics, and earth science." I'd say this answer because it isn't grammatically correct to use the words "including", "are", "is", and "such as". This eliminates "A" and "B", and leaving "C" and "D". "C" is a suggested idea, and isn't really a list, it just gives options and ideas. Therefore, my conclusion is that your answer is "D"
