What role do the arytenoid cartilages play in speech?
A. Slight movements of the cartilages help shape sound into intelligible speech.
B. Sound is produced when the cartilages are adducted, and passing air causes them to vibrate.
C. When they rotate, they either adduct or abduct the vocal folds and influence pitch.
D. They control the movement of the corniculate cartilages during speech production.
E. They provide structural support for the vocal folds.
Answer: C
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