question: Q:A 21-year-old female presents to the family physician with 3 weeks of headaches, sweating, and palpitations. Her BP was 160/125 mmHg, and a 24-hour urine test revealed elevated vanillylmandelic acid (VMA) and normetanephrine. Past medical history is notable for bilateral retinal hemangioblastomas, and family history is significant for three generations (patient, mother, and maternal grandfather) with similar symptoms. Genetic analysis revealed a mutation of a gene on chromosome 3p. Which of the following is the patient at risk of developing?? 
  {'A': 'Clear cell renal cell carcinoma', 'B': 'Retinoblastoma', 'C': 'Osteosarcoma', 'D': 'Breast cancer', 'E': 'Ovarian cancer'},