The answer on the question presented above is letter C. C. He supported the goals and tactics of Martin Luther King, Jr., and César Chávez. History records that Robert F. Kennedy (RFK) visited Delano, California to meet César Chávez, a civil rights activist who was on his 25th day of hunger strike showing his commitment to non violence.That visit made him decide to challenge Johnson for presidency.
On the other hand, many public institutions jointly honor Kennedy-King (RFK and Martin Luther King Jr.) which simply implies that RFK supports King's goals and programs.