The correct answer is B. The iron having a faulty cord
Explanation:
An electrical shock occurs as electrical energy flows into the body which leads to injuries or shock. In the case presented, it is likely the electrical shock is related to the iron rather than any other factor because the incident occurred only when Michelle was ironing her clothes. Additionally, it is likely the iron had a faulty cord or did not work properly, which caused the electrical energy to flow to the surface of the iron or the zone Michelle had contact with instead of flowing to the inner system of iron that keeps it working. Thus, it is likely this incident happened due to the iron having a faulty cord.
I would say bicycling because jogging and jumping jacks can be bad on your knees because of the impact. Biking is pretty smooth though and wouldn't have much of an impact. Hope this helps :)