|Question 12Verbal

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Psychologists Gregory Bryant, Dorsa Amir, and colleagues investigated cross-cultural perceptions of spontaneous (real) laughter and volitional (fake or forced) laughter. Study participants from 21 societies, including those in Japan and Turkey, listened to randomized recordings of 18 spontaneous laughs taken from natural conversations between pairs of women and 18 volitional laughs produced separately by 18 different women in response to an instruction to laugh. Analysis of the participants' evaluations of the laughs prompted the team to conclude that the ability to distinguish between spontaneous and volitional laughter appears to be universal across cultures.
Which potential finding from another study, if true, would most directly strengthen the team's conclusion?
Listeners from both Japan and Turkey tend to be able to determine how well two people know each other based on recordings of their conversation.
A
Spontaneous laughter typically has a recognizably higher pitch than volitional laughter, regardless of what society the speakers in a conversation are from.
B
There is some evidence of correlation between the average size of communities in a society and judgments of spontaneous and volitional laughter by listeners in that society.
C
Acoustic features of spontaneous laughter, such as pitch and intensity, have measurable variations both within and across societies.
D