When producing nas al sounds the air flow(s) a. back in the glottis b. is stopped c. is hissed d. through the nose

The correct answer is a. back in the glottis.<br /><br />When producing nasal sounds, the airflow is directed back into the glottis, which is the space between the vocal cords. This allows the air to pass through the nasal cavity, creating the characteristic nasal resonance.