医疗事故处理争议经双方当事人自行协商解决的，医疗机构应在自行解决之日起，报告当地卫生行政部门的期限为（）

A.3日内

B.5日内

C.7日内

D.15日内

E.30日内

He left school early, and as an adolescent, determined ______  in South American, set off from his home.

A．having a fortune

B．making his fortune

C．to spend a fortune

D．to make his fortune