You Arrive on the Scene to Help Another Crew with the Extrication

You arrive on the scene to help another crew with the extrication from an attic of a female patient who fell while retrieving holiday decorations. As a result of the fall, she has an open fracture to her left lower leg. The patient has been fully immobilized to a long board and has a rigid splint in place to her left leg. Which one of the following would indicate the extremity has been improperly splinted?

A) The splint has immobilized the ankle, knee, and hip regions.
B) Ice packs wrapped in towels have been applied to the skin between the splints.
C) The patient is able to flex her left ankle when directed to do so.
D) The skin of the foot is red and swollen with a weak pedal pulse noted.