Question

Why is it helpful to use the list-group-label strategy?

Answer 1

The list-group-label strategy helps students to improve their vocabulary and categorization skills and learn to organize concepts. Categorizing listed words, through grouping and labeling, helps students organize new concepts in relation to previously learned concepts.

It helps students organize their understanding of specific vocabulary and concepts.It builds on students' prior knowledge about a topic.It actively engages students in learning new vocabulary and content by activating their critical thinking skills.It teaches categorizing and labeling skills.

so i might go with that it gives you a unique interpretation of the text. 
-hope it helps

Answer 2

The answer is C. It helps you identify important features in a text. =)