51. Students don’t have the professor’s signature to use the materials. They can’t take them out of the
library.
A. Once the professor signs the materials, students can take them home after borrowing them from
the library.
B. The professor’s signature can be found on the materials when students borrow them from the
library.
C. The library can lend the material to students who have the professor’s signature on the materials.
D. If students had the professor’s signature to use the materials, they could take them out of the
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