BELLRINGER - MONKEY SEE, MONKEY DO

According to the author, which of the following supports the idea that humans and primates are all subject to primate sensitivity?

• The infectiousness of laughter even works across species. (paragraph 2)

  
  

• Virtually all animals show the peculiar “paroxystic respiratory cycle characterized by a standard cascade of movements over a five- to ten-second period,” which is the way the yawn has been defined. (paragraph 5)

  
  

• Yawn contagion, too, works across species. (paragraph 5)

  
   

• The herd instinct produces weird phenomena. (paragraph 8)

In paragraph 1, how do the repetition of the word “laughter” and the examples provided contribute to the tone of the article?

• The infectiousness of laughter even works across species. (paragraph 2)

• By illustrating how mass media uses laughter to market products, the author sets a formal tone for the article.

  
  

• By including examples of the things that make people laugh, the author creates a mysterious feeling around why laughter is not good for our health.

  
  

   

• By presenting several examples of the enjoyment of laughter, the author creates a playful tone.