This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Which of the following regarding choriocarcinoma is true : 
Select and explain. 
A. Worst prognosis, B. Treatment of choice is hysterectomy, C. Lung metastasis cause hemoptysis, D. Radiotherapy is preferred
C: Lung metastasis cause hemoptysis
Answer: C: Lung metastasis cause hemoptysis 
Explanation: Lung metastasis cause hemoptysis