25. On clinical examination of a patient the following clinical findings were recorded in relation to the lower right quadrant : Gingival necrosis, especially tips of interdental papillae, Ulceration & sloughing limited to marginal gingival tissue, Pseudomembrane formation. No probing pocket depth . Having Fetid breath. Submandibular lymph node enlargement was also recorded. The patient is suffering from
A
Gingival enlargement & extraoral halitosis
B
Necrotizing ulcerative periodontitis
C
Necrotizing ulcerative gingivitis