单项选择题

Bill Clinton took office on January 20, 1993 and became the 42nd U.S. president. He is the first U.S. president who was born after World War Ⅱ. He is also one of the youngest of all U.S. presidents. Clinton was born in a poor family in 1946. Three, months before he was born, his father, William Blats, died. When he was young, his mother remarried Norger Clinton, so the boy’s family name was changed. In the summer of 1963, Clinton was asked to visit the city of Washington. During this visit, he met President Kennedy in the White House. At that time, he wanted to become a president, and then, he was!