What is the position of the vocal folds during adduction?

The position of the vocal folds during adduction refers to their state when they are coming together. This is a critical function for phonation, as adduction allows the vocal folds to close off the airway, which enables the subglottic pressure to build up. When the vocal folds are together, they can vibrate in response to the airflow from the lungs, producing sound. This process is essential for speech production and is involved in modulating pitch and volume. Thus, the correct answer highlights the fundamental concept in phonetics regarding vocal fold function during sound generation.