Noticing that his heart was pounding and that his palms were sweaty while he was taking a difficult test, Harley concluded that he was "anxious." Noticing that his heart was pounding and that his palms were sweaty when an attractive lady asked him to dance, Harley concluded that he was "falling in love." The differing emotions experienced by Harley can best be explained by-

two-factor theory                                          

Explanation:

Two-factor theory: In psychology, The term "two-factor theory" was proposed by Frederick Herzberg during 1959, and is also denoted to as "Herzberg's Motivation Theory model".

The "two-factor theory" tends to provide two distinct factors that are responsible for affecting motivation in a particular workplace including motivating factors and hygiene factors.

Hygiene factors affect employees to work less.

Motivating factors encourages employees to work hard.

In the question above, the different emotions experienced by Harley can best be explained by the two-factor theory.

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."

yes peace and development are complementary to each other since they both undergo a great deal of getting where they want to go whether its peace in general and. development