Self-testing is an effective strategy to A. review information you've already read.
B. prepare information you plan to read.
C. survey information you are about to read.
D. make a plan for how to read information.

A. review information you have already read

A. review information you've already read.

Explanation:

You can use an analogy towards studying for example. You review the information you already used or have been taught previously, and test yourself again. Hope I helped!

this isn't a question, nor is it appropriate for this web site

explanation:

you can't just go around joking about this kind of stuff.