Explanation:

- Option 1: Guardian

- A guardian is someone who is legally responsible for another person, usually a minor or an incapacitated adult.

- Guardianship is concerned with the living, not managing the affairs of someone who has deceased.

- Option 2: Pleader

- A pleader is often an attorney or solicitor who argues a case in court.

- This role isn't specifically related to managing a deceased person's estate.

- Option 3: Legal representative

- A legal representative manages the estate of a deceased person.

- This is the correct term used in legal contexts for handling a deceased person's legal affairs.

- Option 4: None of the above

- This implies none of the listed choices represent the role, which is not accurate here.