Explanation:

- Abatement commonly refers to the suspension or termination of legal proceedings, often due to the absence of necessary parties.

- Option 1: Suspension or termination of proceedings in an action for want of proper parties.

- This captures the essence of abatement, where a legal action stalls or ends because essential parties are missing.

- Correct Answer

- Option 2: The process of bringing on record legal representatives of the deceased party.

- This is not typically referred to as abatement. It’s more aligned with substitution procedures in legal contexts.

- Option 3: Both (a) and (b).

- This option is incorrect because abatement doesn't involve the proceedings in option 2.

- Option 4: None of the above.

- Incorrect because option 1 correctly explains abatement.