Which of the following is/are associated with an impacted tooth?
1. Odontogenic adenomatoid tumour.
2. Periapical osseous dysplasia (periapical cemento-osseous dysplasia).
3. Calcifying epithelial odontogenic tumour.
4. Cementoblastoma.

(1) and (3)

(1) (2) (3)

(2) and (4)

(4) only

All of the above.