Correct option is C
Student-centric groups are groups in which students are responsible for their own learning. The teacher acts as a facilitator, but the students are the ones who are responsible for coming up with ideas, solving problems, and making decisions. This type of group is ideal for promoting collaboration and problem-solving among learners.
Independent student assignments, teacher-centric groups, and social groups are all less effective for promoting collaboration and problem-solving. Independent student assignments do not require students to work together, teacher-centric groups do not give students enough autonomy, and social groups are not focused on academic learning.