Answer:
True
Step-by-step explanation:
There may be a limit, but usually, more is better because it gives you more information. But, try not to highlight/underline (annotate) too much because then it will be super unorganized, messy, and you will be pretty much annotating everything to the point where you even annotate something not so important. Therefore, annotate what you actually need, but usually, more is better.
So, the answer is true.