Which laryngeal cartilage is correctly matched? A. Cuneiform cartilage ; forms the Adams apple B. Cricoid cartilage : part of a pair , important in voice production C. The thyroid cartilage; part of a pair, a small cartilage D. Epiglottis; single cartilage blocks food from entering the larynx 8. B-lymphocytes are categorized as part of the adaptive branch of the immune system for all of the following reason but one. A. They are a first line of defense that can begin killing pathogens immediately B. They require costimulation from an activated T helper cell C. They produce memory cells when activated D. Their receptors will bind to specific antigen.