1. 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