46. in the research study described in the second
paragraph, after volunteers said words that
placed their facial muscles into smiles, what
did the researchers do?
f. cooled down the blood entering the volunteers’
brains
g. asked the volunteers to say words like
“few”
h. explained the purpose of the study to the
volunteers
j. placed the volunteers’ facial muscles into
frowns
k. determined how happy the volunteers felt