Increasing number of vehicles on the road is a growing concern in many cities around the world. It leads to traffic congestion, air pollution, and other negative impacts on the environment and quality of life. To address this issue, it is important to come up with better and prudential solutions that can effectively reduce the number of vehicles on the road. Among the given options, option 'C' which suggests creating awareness among people to use buses more instead of their personal cars, seems to be the most suitable solution. Here is a detailed explanation of why option 'C' is the correct answer:

**1. Promoting Public Transportation:**
- Encouraging people to use buses more will help reduce the number of vehicles on the road.
- Buses have higher passenger capacities than personal cars, meaning that fewer vehicles will be needed to transport the same number of people.
- This will help alleviate traffic congestion and reduce the overall number of vehicles on the road.

**2. Environmental Benefits:**
- Public transportation, such as buses, is generally more eco-friendly than personal cars.
- Buses produce fewer emissions per passenger compared to individual cars, leading to improved air quality and reduced pollution.
- By increasing bus usage, we can contribute to a cleaner and greener environment.

**3. Cost-effective Solution:**
- Using public transportation is often more cost-effective than owning and maintaining a personal vehicle.
- Buses offer a cheaper mode of transport, especially for daily commuting.
- Promoting bus usage can help individuals save money on fuel, parking fees, and vehicle maintenance costs.

**4. Infrastructure Improvement:**
- Increased usage of public transportation can lead to improved infrastructure.
- As more people use buses, authorities may invest in better bus services, including increased frequency, extended routes, and improved facilities.
- This will further enhance the convenience and attractiveness of public transportation, encouraging more people to opt for buses instead of personal cars.

**5. Community Benefits:**
- Promoting the use of public transportation can help build a sense of community.
- People traveling together on buses have the opportunity to interact, fostering social connections and a sense of belonging.
- Additionally, reducing the number of vehicles on the road can lead to safer and more pedestrian-friendly streets.

In conclusion, creating awareness among people to use buses more instead of their personal cars seems to be a better and prudential solution for increasing the number of vehicles on the road. This approach not only addresses the issue of traffic congestion but also has environmental, cost-effective, infrastructure, and community benefits. By promoting public transportation, we can work towards a more sustainable and efficient transportation system.

Option (c) Awareness of people to use bus more instead of their personal cars is the correct answer.