Which manner of articulation begins as a stop but releases as a fricative?

Affricates are speech sounds that begin as stop consonants and are then released as fricatives. This unique manner of articulation distinguishes them from other types of consonants. An affricate starts with complete closure in the vocal tract, creating a stop, which is followed by a release that allows air to flow through a narrow constriction, making a fricative sound.

For example, the sounds represented by "ch" as in "church" and "j" as in "judge" are affricates. They effectively combine two articulatory features, allowing for a smooth transition from a complete stop to a turbulent airflow, characteristic of fricatives. Other options do not share this specific feature; fricatives are characterized solely by turbulent airflow from the beginning, nasals involve airflow through the nasal cavity, and liquids are produced with a more open configuration in the oral cavity without the stop-fricative combination.