Correct answer the 3rd option.His founding of the American G.I. Forum led to expanded rights and liberties for Hispanic Americans.Proof: Hector P. Garcia was a Mexican American physician, World War II veteran, and civil rights advocate. In 1948, he founded the American G.I. Forum, an organization that initially focused on securing equal rights for Hispanic veterans but later expanded its mission to fight discrimination in education, health care, and employment.One of the most famous cases the Forum took on was the Felix Longoria Affair, where Garcia fought against racial discrimination in the burial of a Mexican American soldier. This brought national attention to the issue and led to broader support for civil rights reforms. His work directly contributed to the Civil Rights Movement by advancing rights for Hispanic Americans, which is why his actions represent the age of Civil Rights.