Is an employer negligent for failing to protect an employee from being attacked by a dog, whether or not the dog is known to have abnormally dangerous propensities?

a. An employer has no duties in regard to an animal on the premises because of the rule that animals cannot be absolutely controlled under any circumstances.

b. An employer can be held strictly liable for failing to protect an employee from getting attached by a dog, even if the dog is not known to possess abnormally dangerous propensities.

c. An employer cannot be negligent for failing to protect an employee from getting attached by a dog unless the dog is not known to possess abnormally dangerous propensities.

d. An employer can be negligent for failing to protect an employee from getting attached by a dog, even if the dog is not known to possess abnormally dangerous propensities.