1) Dogs are able to discern peoples' emotions by assessing their tone of voice and facial expressions and therefore are confused when the two do not align. Linda Dimovsky and her team derived this finding through observing dogs' degree of shock indicated by their facial and tail movements when the dogs were exposed to voices that did not match their owners' expressions. Dogs did not express much shock when the voices matched the expressions, but they were alarmed when the voices did not accord with the emotions expressed by their owners' faces.
According to the text, how did the researchers determine the level of shock displayed by the dogs in the study?
A) They observed how the dogs moved their faces and tails.
B) They analyzed how the dogs sensed their owners' postures.
C) They cataloged the way the dogs responded to affection.
D) They documented how the dogs responded to anger.