Final answer:
The teacher's effective supports for confused students included facilitating peer discussions, reading materials with them, and asking specific, clarifying questions.
Step-by-step explanation:
When students were confused, the effective supports provided by the teacher included a variety of instructional strategies to facilitate understanding and engagement. Specifically, the teacher directed students to talk with each other, creating a collaborative learning environment. Additionally, she read their card with them to ensure comprehension of the material. She also engaged them with specific questions about how their card related to others, fostering deeper connections and critical thinking. Therefore, the response to the question is d. all of the above.