Suppose that Radical Board's manager simply verifies employment for the camp director. During Keller's first month at the camp, he is able to gain access to the girls at night and sexually assaults three of them. The girls' parents have brought suit against the camp as well as Radical Boards. The camp:

a. is not liable for the criminal conduct of employees that was not authorized.
b. might be liable for negligent hiring.
c. has no liability for conduct of employees after hours.
d. both a and b e. none of the above