When is it safe to ride a motorcycle without a helmet in Ontario?

Answer: C — It is never safe to ride without a helmet.

Riding a motorcycle without a helmet is considered inherently unsafe due to the high risk of head injuries in the event of an accident. Helmets are specifically designed to protect the head and mitigate the impact forces that can occur during a crash. In Ontario, wearing a helmet is not only a requirement by law for all riders but also a crucial safety measure that enhances survivability and reduces the severity of injuries. The correct understanding is that there is never a situation where it is deemed safe to ride without a helmet, as accidents can happen unexpectedly, and the potential for severe head trauma is very real. The other options suggest conditions under which riding without a helmet could be permissible or safe, which does not align with the overarching principle of motorcycle safety that emphasizes helmet use as a best practice at all times.