Final answer:
The most obvious ending for Farah's story, considering her dedication and clear goal, is that she plays well and wins the scholarship to music college.
Step-by-step explanation:
Given the context that Farah has dedicated an immense amount of time and energy practicing violin with the specific dream of winning a music college scholarship in mind, the most obvious ending would be D. Farah plays well and wins the scholarship. The narrative suggests a cause-and-effect where her hard work is expected to pay off. Any alternative ending, such as Farah questioning her dream or meeting a new friend, may provide an unexpected twist but would not align with the most predictable outcome based on the preceding information. The introduction of Ji-Hae Park's experience, however, subtly adds depth and a different perspective to the narrative, indicating that successful musical endeavors can also lead to emotional and mental challenges. Nevertheless, the classical arc of storytelling would lean towards a gratifying conclusion where effort is rewarded.