Introduction:
- The question asks about the rules that should be followed on the road.
- The options given are football, traffic, hockey, and none of these.
- The correct answer is option B, which refers to traffic rules.

Explanation:
Traffic rules:
- Traffic rules are a set of regulations and guidelines that govern the behavior of road users.
- These rules are designed to ensure safety and maintain order on the roads.
- They are enforced by traffic police and violation of these rules can result in penalties and fines.

Importance of following traffic rules:
- Following traffic rules is crucial to prevent accidents and ensure the smooth flow of traffic.
- It helps in reducing the risk of injuries and fatalities on the roads.
- Traffic rules also help in minimizing traffic congestion and maintaining discipline among road users.

Examples of traffic rules:
1. Speed limits:
- Speed limits are set to control the maximum speed at which vehicles can travel on different types of roads.
- They are determined based on factors such as road conditions, traffic density, and safety considerations.
- Following speed limits helps in preventing accidents and maintaining a safe driving environment.

2. Traffic signals:
- Traffic signals are used to control the movement of vehicles and pedestrians at intersections.
- They include red, yellow, and green lights that indicate when to stop, prepare to stop, or go.
- Drivers and pedestrians must obey these signals to avoid collisions and ensure the orderly flow of traffic.

3. Lane discipline:
- Lane discipline refers to the practice of staying in the designated lane while driving.
- It helps in maintaining the flow of traffic and prevents unnecessary lane changes or overtaking.
- Changing lanes without proper signaling or in an unsafe manner can lead to accidents.

4. Use of indicators:
- Indicators or turn signals are used to indicate the intention to change lanes or make a turn.
- Drivers must use indicators in advance to alert other road users about their intended actions.
- Failing to use indicators can confuse other drivers and increase the risk of accidents.

Conclusion:
- It is essential to follow traffic rules while driving to ensure the safety of oneself and others on the road.
- Traffic rules help in maintaining order, reducing accidents, and ensuring a smooth flow of traffic.
- Therefore, option B, which refers to traffic rules, is the correct answer.