Gingivitis, Periodontitis, and Necrotizing ulcerative gingivitis.
Explanation:
Gingivitis - gums are mildly inflamed, may appear red or swollen and may bleed during brushing. Periodontitis - gums begin to separate and recede from the teeth. This allows plaque to move toward the roots, supporting fibers and bone. Necrotizing Ulcerative Gingivitis - supporting fibers, bone is destroyed and necrosis of the gum and surrounding tissue is seen.
Most of these I would advise you not to handle food with, but the most seriousness of these diseases is Typhoid Fever. Typhoid Fever is obtained by food an infectious person handles. The answer is C.
