Eleza has been training for her 10k race for months. The morning of her race, she feels ready but has a few butterflies in her stomach. She knows she has a moderate level of nerves (arousal), which leads to the best performance, according to the __________.
◦ moderate level arousal principle
◦ Yerkes-Dodson Law
◦ drive reduction theory
◦ kick butt runner's law