In One German Study, Students Who Were Asked to Engage

In one German study, students who were asked to engage in all-out sprints learned

A) less than joggers as they were exhausted by the time they were exposed to a vocabulary test.
B) more than joggers, as they experienced higher brain-derived neurotrophic factor levels.
C) less than joggers, as they experienced higher brain-derived neurotrophic factor levels.
D) more than joggers as they were tired and able to focus on the vocabulary words.