Never dwell on pure, unselfish motives in speeches of tribute

According to the book, all of the following are guidelines for interpersonal communication competence EXCEPT:

A) ?Develop a range of skills. B) ?Adapt communication appropriately. C) ?Engage in dual perspective. D) ?Encourage your imagination. E) ?Commit to ethical communication.

A speaker’s voice is a key component in the development of a conversational and relational style of delivery, which is accomplished in part though variation of pitch, rate, pauses, and volume. This statement refers to which component of effective delivery?

a. Eye contact b. Personal appearance c. Vocalics d. Body Position