After a ride on the very frightening roller coaster with helga, manfred's heart was beating fast, his hands were sweating, and his knees were trembling. he looked at helga and concluded that he must be falling in love with her. manfred's emotional experience can best be explained by the:

Manfred’s emotional experience can best be explained by the “The two-factor theory of emotion”.

The two-factor theory of emotion, which is also called dual-factory theory, is an idea that human emotions and feelings have their base on two factors which are physiological arousal and cognitive label. The theory was presented by Stanley Schachter and Jerome E. Singer.

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.