The Term "Voice-Onset Time" (VOT) Refers to the

The term "voice-onset time" (VOT) refers to the

A) age at which infants begin to produce vocal sounds.
B) time that elapses between successive syllables in ordinary speech.
C) average length of the pause between two people's utterances in a conversation.
D) amount of time that elapses between the moment air begins to flow at the start of speech sound and the moment at which voicing begins.