Which of the following describes the author's main purpose of the text?
A to explore why people and animals yawn and how yawns are
contagious
B to prove that yawning is more of a biological function than a social one
C to explain why scientists know so little about why humans yawn
D to support the theory that yawning helps cool down the brain

Which of the following describes the author's main purpose of the text? A to explore why people and animals yawn and how yawns are contagious B to prove that ya class=

Answer :

I would say A because it is the main idea and the others are details to support the main idea.

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