Answer:
The question you should ask while surveying to help you better understand what you're about to read is the following one:
D.What do I already know about this topic?
Explanation:
Previous knowledge is a must when it comes to reading, let alone surveying. It helps you predict aspects of what you are about to read, such as the type of text, the people you will read about and their traits, as well as setting and situation. That is why we usually finish reading a book whose topic we are familiar with much faster than one whose subject we know nothing about. Therefore, previous knowledge helps us gain time and improves the quality of our survey.
Eg: when surveying about Edgar Allan Poe, if you know at least who he was and the kind of literature he produced, that will optimize your survey significantly, since you will know what to expect in terms of tone (somber) and content (dreadful). It means you will be enriching your knowledge on the author, rather than acquiring information from scratch, which would take much longer.