Final answer:
The Stop phonemes /p/, /t/, /k/ are unvoiced.
Step-by-step explanation:
The Stop phonemes /p/, /t/, and /k/ are unvoiced.
In phonetics, voiced sounds involve the vibration of the vocal cords, while unvoiced sounds do not. The /p/, /t/, and /k/ sounds are produced without vocal cord vibration, making them unvoiced consonants.
For example, when you say the sound /p/, you produce a short, sharp burst of air by closing your lips and then releasing them, but without using your voice. Similarly, when pronouncing /t/ and /k/, you create sounds using your tongue and palate without vocal cord vibration.