Answer:
B. key words and concepts.
Step-by-step explanation:
Highlighting key words and concepts is a technique frencuently used by young students, to use selective attention and organize the reading into significant information.
The brain only retains information that considers meaningful and while quickly forgett that it was considered irrelevant.
The highlighting only applies for identifying the key words, phrases commonly repeated, and key vocaulary or arguments that are being discussed in the text.
As Mia draws attention to the relevant information in a text , she discriminates in organizing the information into imporant, relevant and then later she can come back and review , rehearsing only the significant portions of the text that are essential to learning that topic.