Which of the following is NOT a true cyst?
1. Keratocystic odontogenic tumour (odontogenic keratocyst).
2. Traumatic bone cyst.
3. Radicular cyst.
4. Lateral periodontal cyst.

(4) only

(2) and (4)

All of the above.

(1) and (3)

(1) (2) (3)