Answer: B. Though it is a tough decision, Jaja decides to stay home and continue practicing.
Explanation:
Jaja wants to be a violinist more than anything, although she also wants to spend time with friends she decides to rather practices, because she has an audition in three weeks. The climax is when she decides to practice because that what happens as the outcome of that decision and the result of her practicing is the final part of the story: she blew the judges away and got a full scholarship.