Violation
The apical region of a non-vital tooth with a deep carious lesion may radiographically show 1. widening of the periodontal space. 2. loss of lamina dura. 3. a circumscribed radiolucency. 4. calcification of the periodontal membrane
(1) (2) (3)
(1) and (3)
(2) and (4)
(4) only
All of the above.