Answer:
The correct option is:
C) They involve frictional airflow between two articulators.
Affricates are consonant sounds that begin with a complete closure of the vocal tract, like a plosive, and then release into a fricative-like sound. This release involves frictional airflow between two articulators, such as the tongue and the roof of the mouth or the tongue and the teeth. Therefore, option C best describes what it means when speech sounds are affricates.
