word meaning - quiz - level c\nwhy does the a...
word meaning - quiz - level c\nwhy does the author say yawning is contagious?\nheres an experiment to try: see if you can make your friends yawn by pretending to yawn. just open your mouth really wide, stretch your arms, and inhale.\nnow tell your friends not to yawn. can they do it? probably not! what does that prove?\nscientists are trying to find out why yawning is so contagious, and how to stop a yawn from spreading. their research may give us information on how the brain works.\npeople stretch and yawn at the same time.\npeople pretend to yawn with their friends.\npeople like to do research on yawns.\npeople yawn after seeing others yawn.
Answer
# Brief Explanations:
Contagious yawning refers to the phenomenon where people yawn after seeing others yawn. The other options do not define the concept of contagious yawning.
# Answer:
D. People yawn after seeing others yawn.