Final Answer:
The affricative that is voiced while /ch/ remains unvoiced is represented by option A) /dʒ/.
Step-by-step explanation:
In phonetics, the distinction between voiced and unvoiced sounds is crucial. The sound /ch/ represents an unvoiced affricative, produced when the airflow is partially obstructed, creating friction without engaging the vocal cords.
On the other hand, option A, /dʒ/, corresponds to a voiced affricative, involving vocal cord vibration when the sound is articulated. The difference lies in the vibration of the vocal cords; while both /ch/ and /dʒ/ are affricatives produced by the same articulatory mechanism, the former is unvoiced, and the latter is voiced.
The unvoiced affricative /ch/ is created by placing the tongue against the hard palate, allowing air to flow through a narrow passage without engaging the vocal cords. Conversely, the voiced affricative represented by /dʒ/ involves the same tongue position but with the added vibration of the vocal cords, producing a sound that differs from /ch/ due to vocal cord engagement. Understanding the distinction between voiced and unvoiced affricatives is fundamental in phonetics to accurately pronounce and differentiate sounds in various languages and speech patterns.