You use a study done by a professor at the University of Arizona in your research. In this study, he did an experiment on perception involving college students and movie advertisements, and he published it in the Journal of Experimental Psychology. What type of research is this

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

its kind of blury sorry

answer; deviation iq; //(a)

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."