Based on the information provided, the belief that Edward Kennedy held can be inferred from his actions and advocacy throughout his career. In this case, the most fitting answer would be:
A. fairness
Edward Kennedy's support for the Civil Rights Act, his advocacy for equal rights for women and people with disabilities, and his work towards improving housing, health care, and education for the poor demonstrate his strong belief in fairness and equality for all individuals.
Kennedy's dedication to these causes reflects a commitment to ensuring that all individuals are treated justly and have equal opportunities, emphasizing the importance of fairness in society.
Therefore, based on the information presented, Kennedy's belief aligns most closely with fairness.