"D" <em>make an inference</em>
When there are gaps of information, you usually want to look at the text and the information given to make an inference of what you think the author might mean/ what information needs to be in the context to make the text understandable. The author is trying to get you to make inferences and think for yourself.
I hope this helps!
~kaikers
The answer to this question is <span>The alphabet it has all of those and none at the same time</span>
Answer:
visible light I know for a fact that is the answer
I'd have to go with<span> D. less sophisticated than the shop girls.</span>