Answer:D. Small group work
Step-by-step explanation:
Small group work are comprised of fewest group members such as Nicole group of 3 people per group. It allows everyone to have a fair chance to participate and share their own ideas even those who are usually shy to speak may feel a bit comfortable to speak in small groups. In Nicole's group also the group members will be able to take turns calling out new vocabulary words which may be difficult in larger groups.
If may be effective for students who may find it hard to be in a tight competition where everyone is able to speak loud and boldly such as in larger groups.