1. Verbal communication refers mainly to:

A. vocal quality.
B. pitch.
C. use of words.
D. tone.

is it C

2. Nonverbal communication includes:
A. posture.
B. clapping.
C. eye contact.
D. All of the above.

is it D

3. Vocal quality may refer to voices that may be:
A. rich.
B. resonant.
C. thin.
D. All of the above.

is it D

I agree with all of your answers.

Yes, for question 1, the correct answer is C. Verbal communication mainly refers to the use of words.

For question 2, the correct answer is D. Nonverbal communication includes various aspects such as posture, clapping, and eye contact.

And for question 3, the correct answer is also D. Vocal quality can refer to voices that are rich, resonant, thin, or any other attributes related to the quality of one's voice.

Yes, for question 1, verbal communication refers mainly to the use of words, so the correct answer is C.

For question 2, nonverbal communication includes various aspects like posture, clapping, and eye contact. So, the correct answer is D.

And for question 3, vocal quality can indeed refer to voices that are rich, resonant, and thin. Therefore, the correct answer is D.