When you learn something by reading, does it help you to also have a rephrased version of what you're reading at your disposal?

A — Yes, reading something restated in different words always helps me.
B — It might help me get a better understanding, but only if it actually qualifies as a summary (i.e. highlights main takeaways and is significantly shorter than the main text).
C — No, doesn't help at all.
D — Something else (add comment).

Boosts for reach appreciated!