Which bone is most likely to fracture if a person gets hit in the face with a puck?

The mandible is the correct answer because it is the bone that forms the lower jaw and is most exposed in the facial area. When a person is hit in the face, especially with a hard object like a hockey puck, the mandible is vulnerable to fractures due to its location and the impact of the collision.

Considering the other options, the rib is located in the thoracic cavity and would require a direct impact to the chest to sustain a fracture, which is less likely in this scenario. The radius is a bone in the forearm, which is not typically involved in facial injuries. The femur, being the thigh bone, is situated much farther from the facial area and would not be impacted by a blow to the face. Therefore, the mandible is the most likely site of fracture due to its prominence and susceptibility to impact injuries in the facial region.