None of the above, it's a voting system
The answer is indeed a, b ,c ,d
Answer:
The seminar is about safety and only topics that deals with safety issues and how to protect yourself will be included in the topic.
Protection against second-hand smoke
: Second-hand smoke is very dangerous to health and is a health issue. Teaching children how to protect themselves against it will be a good safety topic.
Providing helmets before riding a bicycle
: Once again, one can fall from a bicycle and sustain a head injury. However, using a helmet can protect them against such injuries and thus this is a good topic to be included.
Using appropriate restraints in motor vehicles: In case of accidents, appropriate motor restraints can save someone a great deal. If not done, this can lead to injury or death in the case of an accident. Thus this is a great topic for a safety seminar
The other options has nothing to do with guaranteeing safety.
Explanation:
