Answer :
According to the Yerkes-Dodson law, Luiz is most likely to get the best grade in the third class.
The Yerkes- Dodson is a model which shows the connection between pressure and task performance. It suggests that you can function at your best level with a moderate amount of stress or excitement. Poorer performance is the outcome of insufficient or excessive arousal. This is often referred to as the inverted-U arousal model.
The theory was developed in 1908, when psychologists John Dodson and Robert Yerkes conducted studies on rodents. Despite being referred to as a law, Yerkes-Dodson is more of a psychological idea than a scientific one.
To read more about Robert Yerkes see:
https://brainly.com/question/10548873
#SPJ4