There 's still a voice in the back of my head that 's unsure if I 'll still need to get surgery , but I ' m trying to silence it . My mom is going to call my doctor and ask if since we 're getting a biopsy , that that means I wo n't have to get surgery . The only reason she 's going to call is because my doctor said she 'd call personally , not that her nurse would call , and also we just want to know for closure .
According to the above context, choose the best option to answer the following question.
Question: What is the person worried that they might have ?
Options:
A. Leaukemia
B. cancer
C. Heart disease
D. a brain tumour


B