Step-by-step explanation:
As it is compulsory for the students to pass all subjects in order to get signed up for the basketball camp, and Marie has two weeks before the camp starts and she has to make decision between choosing the extra science class or to join the basketball camp. So she should avail these two weeks and should focus on the science subject as much as she can in order to pass it with above average marks. In this way, she would be able to have a command over the science subject and can get herself enrolled for the basketball camp. So by availing these two weeks in her study, she can join her desired basketball camp.