有题OG的题不是很明白，请大家指点……

As Hurricane Hugo approached the Atlantic
coast, it increased dramatically in strength, becoming the tenth most intense
hurricane to hit the United States mainland in the twentieth century and most
intense since Camille in 1969.

A.     
most intense since Camille in
1969

B.     
most intense after Camille in
1969

C.     
the most intense since Camille
in 1969

D.    
the most intense after 1969,
which had Camille

E.     
since 1969 and Camille, the
most intense

答案是 C       能不能解释since 在句中的意思和作用？

since here used as prep., "自...以来"

Camille is the name of one hurricane that once happened in 1969.

谢谢啊，清楚明白……哈哈……感谢