Lacy set her textbook under her chair in her business law class and then forgot to take it with her ...

Lacy set her textbook under her chair in her business law class and then forgot to take it with her when she left the classroom. A janitor later discovered the textbook and gave it to the Dean of the Business College. In this situation,
 A) the college is a constructive bailee, obligated to return the textbook to Lacy, and until it does, it is liable for harm to the property.
 B) the college is a bailee by agreement because holding items in a lost and found box is generally part of the college-student agreement when the student enrolls for classes.
 C) the college is responsible for the discovered textbook because in this situation, the college is subject to implied warranties unless the college has disclaimed such warranties in the student handbook.
 D) this is a bailment for the sole benefit of the bailee.