Answer :
The answer is A, nation of Islam. Malcolm X had become baffled with the peaceful, coordinated battle for civil rights and stressed that blacks would at last lose control of their own development in the year 1960. He was known for being an outspoken activist.
the militant civil rights group was led by Malcolm X until he turned to nonviolence and left the group was: A. Nation of Islam
According to his own words, Malcolm X left the group because it has "gone as far as it can" and many members of the group started to enacted the violent part of the religion