Answer:
A. guessing from context.
Step-by-step explanation:
The strategy that would make use of your previous knowledge would be that of "guessing from context." When you are reading a text, and you do not understand something (a word, a situation, an event, etc.) one of the things that you can do is try to guess. A guess can be quite accurate if you pay attention to the context of the text. However, in order to be able to do this, you would need to rely on your prior knowledge.