Hey there,
Your question states: <span>Which choice most effectively displays the concept of comparison and contrast?
Based on my understanding, the best option from your answers choices above,your correct answer would be </span>

. My reason on why I say that the answer would be "<span>While they are almost the same size, Earth and Venus have very different terrains." is basically because this would be a good compare and contrast. The other options have no click to it to make a concept of making a compare and contrast. Your correct answer would be D.
Correct answer : "</span><span>While they are almost the same size, Earth and Venus have very different terrains"
~Jurgen</span>
Answer:
C) I am writing to ask you to read one of stories at the town library's story hour for children.
Preposition hope this helps :)