which of the following is a requirement for membership in either the democratic or republican party? a.pass a test on the party philosophyb.pay a certain amount of dues (differs by state)c.say you are a member of that party (register)d.all of the above

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

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."

the correct answer is d