The characteristic tough, grayish-black pseudomembrane formed in the pharynx of a patient suffering from Diphtheria is primarily composed of which of the following?

Options:

• A: Accumulated bacterial flagella and lipid-rich capsules.
• B: Fibrin, necrotic inflammatory cells, red blood cells, and epithelial cells held together by the bacterial network.
• C: Calcium oxalate crystals precipitated by the metabolic action of diphtheria toxin.
• D: Hyperplastic lymphoid tissue of the tonsils stimulated by IgE antibodies.

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