At the start of the school year, Brianna’s history teacher announces that students’ final grades will be weighted based on how they do in three categories: exams (60 percent), final presentation (30 percent), and class participation (10 percent). Which strategy would most likely help Brianna get the best grade?

A spending more time studying for exams than creating the final presentation

B splitting her time evenly between studying for exams and creating the final presentation

C concentrating on creating the final presentation and speaking up in class

D working hard at participating in class and studying for exams