What is the study of the communicative impact of body movement and gesture?

Neurologist Antonio Damasio concludes that emotions are indispensable for rational decision making

Indicate whether the statement is true or false

According to Social Judgment Theory, the only two factors that influence the persuasiveness of a message are __________.

a. the position advocated and the valence of that position b. the position advocated and the clarity that position is presented c. the clarity of the position and the valence of that position d. the position advocated and the strength of that position