[Solved] Diffraction plays an important role in which of the following phenomena? A)The sun appears as a disk rather than a point to the naked eye B)Light is bent as it passes through a glass prism C)A cheerleader yells through a megaphone D)A farsighted person uses eyeglasses of positive focal length E)A thin soap film exhibits colors when illuminated with white light Gingivitis: A common and mild form of gum disease (periodontal disease) that causes irritation, redness, and swelling (inflammation) of the gingiva, the part of the gum around the base of the teeth. Frenulum: Fold extending from the floor of the mouth to the midline of the undersurface of the tongue. Sublingual Glands: Salivary glands located beneath the tongue, responsible for secreting saliva that aids in digestion and oral hygiene. Intrinsic Factor: Factor secreted by the parietal cells of gastric glands and required for adequate absorption of vitamin B12.