Which of the following statement about Martin Luther King is true?
选项：

A:Martin Luther King, Jr.s Day is to commemorates the birthday of the African-American civil rights leader.
B:He won the Nobel Peace Prize in 1964.
C:King's most famous speech, "I Have a Dream" was given in 1963
D:He fought against racial discrimination and prejudice saying that people should be judged according to their character.