Nicole is in a study group to prepare for a test on plant biology, a subject she knows a lot about. During their meetings, she always comes prepared, helps other students, does most of the talking, and handles all of the tasks.

What does Nicole need to do to make the study group more effective?

come better prepared and offer relevant information
let other students participate more and share the workload
share more of her opinions and answer questions
keep her thoughts to herself and let others do all the talking