The correct answer is option 'C', which states that the head of the tall girl is weighed down by the burden of her world. This means that the tall girl feels overwhelmed and burdened by the various responsibilities and challenges she faces in her life. Let's explore this answer in detail:

Explanation:

1. The Burden of Studies:
- As a student, the tall girl may face the pressure of performing well academically. This includes studying for exams, completing assignments, and maintaining a good academic record.
- The burden of studies can be mentally and physically exhausting. The tall girl may feel overwhelmed by the amount of information she needs to learn and the expectations placed upon her.

2. The Burden of Work:
- In addition to her studies, the tall girl may also have to balance work responsibilities. This could include part-time jobs or internships to gain work experience or contribute financially to her family.
- Juggling work and studies can be challenging, as it requires managing time effectively and ensuring that both areas receive adequate attention. The pressure to perform well in both domains can weigh heavily on the tall girl.

3. The Burden of Her World:
- The phrase "burden of her world" suggests that the tall girl feels the weight of the world on her shoulders. This could encompass various aspects of her life, such as family responsibilities, personal expectations, societal pressures, and other challenges she may face.
- She may have to take care of family members, deal with personal issues, and navigate societal expectations related to her appearance, achievements, and relationships.
- These factors can contribute to a sense of heaviness and burden, as the tall girl tries to meet the demands and expectations of her world.

Overall, the head of the tall girl is weighed down by the burden of her world, which includes the pressures of studies, work, and various other challenges she faces in her life. This answer highlights the emotional and mental toll that these burdens can have on an individual, causing them to feel overwhelmed and weighed down.