Voice reveals all of the following except a. tone b. emotional response c. resolution d. personality

Voice reveals all of the following except Resolution.

We all know that voice reveals tone, emotional response and personality. So Resolution can't be the answer because you can't be certain about the person's prediction in their voice, you can predict the resolution in someone's voice but you can't be certain or sure.

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I think its Personality, because you can't consider someones personality by their voice.

the answer to the question is a