Julius lost focus while his art teacher was instructing him on how to make a sculpture with recycled materials. Because of this, he does not understand why he is supposed to use recycled materials instead of new materials.

Julius missed the explanation of why recycled materials are required, so he should ask a question to clarify their purpose. Choice B, asking questions to clarify the purpose of the type of materials, directly addresses what he does not understand. Asking for the attachment steps, as in D, would not explain why recycled materials are used.

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