D. because it is a different subject
(A.) is your answer to the question
Answer:
Metaphor. There's no "like" or "as" for it to be a simile anyways, I think.
24 colour tiles because if you convert 3/4 to a percent, it is 75%.
75% of 32 is 24 (After converting the percent to a decimal -> 32 x 0.75 = 24)
Sorry if this sounds confusing.