Dutton and aron's (1974) suspension bridge study demonstrated that men may misinterpret for passionate love; the mere exposure effect passionate love; companionate love physiological arousal; physical attraction physiological arousal; companionate love

Physiological arousal and physical attraction

Explanation:

Physiological arousal and physical attraction, both concept work together. These both concept interact with each other. Dutton and Aron proposed the mis-attribution theory. This theory explained the concept of physiological arousal and physical attraction among people. They both explain the effect of the arousal on attraction. This theory was based on the theory of the emotions of Schechter and Singer's theory.  

Thus answer physiological arousal and physical attractiveness is the correct answer.

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