Which of the following is not a appropriate value for voice-rate?

The correct answer is D. none of the mentioned.

Voice-rate is a parameter that controls the speed at which a text is read aloud. It is typically measured in words per minute (wpm). The most common values for voice-rate are 100-200 wpm. However, some people may prefer to read at a slower or faster pace. There is no one “correct” voice-rate, as it depends on the individual’s preferences and needs.

The options A, B, and C are all appropriate values for voice-rate. However, option D is not an appropriate value, as it is not a specific number of words per minute.