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Answer:
In lines 25 - 26, Frans de Waal stated that Empathy and Sympathy developed because human beings are "easily swayed in one emotional direction or another by their fellows."
Explanation:
In his primatology studies, Frans de Waal concluded that laughter is contagious since people express various emotions in sympathy with others. He made this claim in his writing titled, "The Age of Empathy: Nature’s Lessons for a Kinder Society (2009)." Humans, like other primates, share many emotions in common with their fellow humans.
