Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Most protein antigens require signals from helper t cells (th2) to proceed to make antibody.

Answer: Most protein antigens require signals from helper t cells (th2) to proceed to make what?


Question: Oxygen is transferred through capillaries.

Answer: Which blood vessels is oxygen transferred through?


Question: In type 2 diabetes, the pancreas can still make insulin, but the cells of the body cannot use it efficiently.

Answer:
In what type of diabetes can the pancreas still make insulin, but the cells of the body cannot use it efficiently?