It is important to study how nonverbal communication variables affect small group discussion because:

A. people in groups spend more time communicating nonverbally than they do verbally.

B. nonverbal messages are ambiguous.

C. nonverbal cues are similar in all cultures.

D. nonverbal cues may be taken out of context when interpreting them.

the old way of life was represented by superstition, an angry god, and absolute submission to authority. the thinkers of the age of reason ushered in a new way of thinking. this new way championed the accomplishments of humankind. individuals did not have to accept despair. science and reason could bring happiness and progress. kings did not rule by divine right. they had an obligation to their subjects. europeans pondered the implications for nearly a century. americans put them into practice first.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; how people relate to each other and influence each other;

answer; (who);