There are no actual answers here - just A, B, C, and D, where answer A reads “A”, answer B reads “B”, and so on. There are no diagrams, no descriptions. This makes it impossible to say for certain what the actual answer should be. However, this shouldn’t be that hard for someone who is good at chemistry to figure out.
Since I am not that particularly good at chemistry, I will not attempt to answer this question without a sufficient answer on the list. I would implore the first answerer to expand on how they know it is answer “D” without anything else on the answer list, not only for my benefit, but for the benefit of those who come to this question after me.