According to the article, "The Real Meaning of Cinco de Mayo," why did Chicano/a activists of the 1960s celebrate Cinco de Mayo? a Activists thought celebrating the holiday would appeal to Anglo-Americans. b Activists celebrated the holiday because they were looking for an excuse to party. c It was celebrated by activists to symbolize and encourage cultural and social unity among Mexican Americans. d Most activists were from the region of Puebla, Mexico where the battle of Cinco de Mayo took place.