Violation

Desquamative gingivitis is seen in 1. pemphigus vulgaris. 2. mucous membrane pemphigoid. 3. erosive lichen planus. 4. erythema multiforme.

All of the above

(1) (2) (3)

(1) and (3)

(2) and (4)

(4) only

Please describe the matter of abuse