Final answer:
Canadian crutches are forearm crutches with cuffs that support the forearm and are used with a hand grip, while axillary crutches are placed under the armpits and do not have forearm cuffs.
Step-by-step explanation:
Canadian crutches, also known as forearm crutches, differ from axillary crutches primarily in their design and method of use. The main difference is that Canadian crutches have cuffs that go around the forearm and are held by the hands using a grip, allowing weight-bearing on the arms rather than under the armpits. In contrast, axillary crutches are placed under the armpits with the weight primarily borne on the shoulder and chest area. Choice C) Axillary crutches have cuffs that go around the forearm, while Canadian crutches do not is incorrect. It is actually the other way around; Canadian crutches have cuffs around the forearm, and axillary crutches do not have such cuffs.