单选题 The Portuguese give a great deal of credit to one man for having promoted sea travel, that man ______ prince Henry the navigator, who lived in the 15th century.

【正确答案】 D
【答案解析】[解析] 本题考查的是同位语独立结构。后半句是独立结构，是one man的同位语。 A、B用了谓语动词形式，应排除；C项应为被动形式。因此正确答案为D。