A periapical radiolucency associated with a vital maxillary central incisor can represent
1. a nasopalatine cyst.
2. a dentigerous cyst.
3. the foramen of the incisive canal.
4. a periapical granuloma.

(1) and (3)

(1) (2) (3)

(2) and (4)

(4) only

All of the above.