The correct answer is True.
It is true that King helped to found the SCLS in 1957 in an effort to organize the civil rights movement.
The Southern Christian Leadership Conference is an African American association that supported and promoted the civil rights of black people in the United States. Martin Luther King Jr. was the first President of the SCLC. It was founded on January 19, 1957, after the incident known as the Montgomery Bus Boycott, of the city of Montgomery, Alabama. So it is true that King helped to found the SCLS in 1957 in an effort to organize the civil rights movement.