Use this excerpt from the "Why are yawns contagious? We asked a scientist" article to answer the question.

How does the last sentence in the excerpt help validate the inference that yawn contagion is a form of imitation?

(1 point)
Responses

by explaining similar forms of social mirroring
by explaining similar forms of social mirroring

by summarizing other types of empathetic responses
by summarizing other types of empathetic responses

by discussing the evolutionary role of smiling
by discussing the evolutionary role of smiling

by emphasizing the importance of communication

1 answer

The last sentence in the excerpt helps validate the inference that yawn contagion is a form of imitation by explaining similar forms of social mirroring.