Explanation:

- Option 1: Start shouting.

- This could attract attention but might not be the most effective first response.

- Option 2: Go there and yourself try to rescue those who are injured.

- This is courageous, but it may be unsafe without proper skills or equipment.

- Option 3: Go to the police to tell them about the accident.

- Informing authorities ensures the right help and resources are deployed quickly.

- Option 4: Go back to the village to call other people for help.

- This can gather manpower but might delay professional assistance.

Option 3 is the correct approach. Informing the police allows experts to handle the situation promptly.