Correct Response: A. Assigning students at the expanding level a specific role appropriate to his or her strengths is an effective strategy for ensuring each student is an active member in the group. Students at this level have enough technical language in English to be able to participate in a discussion but may need more structure, such as in the form of an assigned role, to promote their engagement. B is incorrect because students at the expanding level are able to adequately use academic English to participate in a group assignment such as the one in this scenario. Grouping them together would limit their exposure to more challenging language, which is important in supporting their ongoing language development. C is incorrect because it does not provide a support or structure to promote active participation of English language learners; it simply puts them in competition with their English-speaking peers for the participation grades. D is incorrect because rotating the English language learners through a variety of groups during the project would not be beneficial; rather, the students would likely feel estranged from all the groups as a result of not being a permanent member of any one group during the assigned project.