The most effective way to separate the two sections at the blank line is: by inserting a heading about the topic of the second section. This would clearly delineate the shift from discussing yawning and contagion to the introduction of the lack of scientific consensus on the topic.
Use the passage to answer the question.
Why are yawns contagious? We asked a scientist
The average adult yawns 20 times per day. And when you feel a yawn coming on, it can be nearly impossible to suppress. But why does being around other yawners make you yawn? PBS NewsHour asked a speech scientist, a sleep neurologist, a neuroethicist and a neuroscientist who studies brain circuits related to itching why yawns are contagious. They said the evolutionary value of collective yawning remains unknown, but may have something to do with the desire of an animal to protect the members of its tribe.
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There is no scientific consensus on why we yawn.
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Now, answer the question:
Which is the most effective way to separate the two sections at the blank line?
by using bullets to reorganize the first section
by using captions to summarize the article
by including an infographic of different types of scientists
by inserting a heading about the topic of the second section
1 answer