Active organs of speech are: a. the vocal cords, the tongue, the lips, the soft palate, the lower jaw;

b. the vocal cords, the tongue, the teeth, the soft palate, the lower jaw;

c. the vocal cords, the tongue, the lips, the hard palate, the lower jaw;

d. the vocal cords, the tongue, the lips, the soft palate, the upper jaw;

e. nasal cords, the tongue, the lips, the soft palate, the lower jaw;

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