There are several theories of emotion. which one says that the frontal lobes interpret the body's reaction to stimuli?

The best answer for this questio would be

A. Schachter-Singer

Stanley Schachter had developed the "Two-factor theory" together with Jerome E. Singer. This theory focused on the emotions, and their theory stated that emotion is based on two factors. Those two factors would be: physiological arousal and cognitive label.