Explanation:

- He met an accident a few years ago:

- Common expression: "met with an accident"

- Indicates being involved in an accident

- Preposition "with" often used in this context

- Option 1: Along

- Typically means in the company of or on a path

- Not used in context of accidents

- Example: Walked along the path

- Option 2: Across

- Suggests movement from one side to another

- Not suitable for describing accidents

- Option 3: With

- Correct choice

- Commonly used when one is involved in incidents like accidents

- Option 4: From

- Often indicates origin

- Does not fit the context