Tooth 3.6 had endodontic treatment completed 10 years ago. It is asymptomatic but a periapical radiograph reveals a 5mm radiolucency associated with the distal root apex. The surrounding soft tissues are within normal limits. The most likely diagnosis for tooth 3.6 is a/an

chronic periradicular periodontitis

chronic suppurative periradicular periodontitits.

acute periradicular abscess.

acute periradicular periodontitis.