Sack and Suster's Study of Politics and Sport in the Yugoslav

Sack and Suster's study of politics and sport in the Yugoslav Federation showed that:

A) the sports stadium tends to be a place where spectators from different ethnic groups can celebrate their nationalistic feelings and learn not to express those feelings in violent ways.
B) fans of the Croatian Bad Boy Blues and Serbian Delije soccer club came together to express their sense of national unity through sport.
C) different factions among Yugoslavian sports spectators used the sports arena to try to advance conflicting political agendas.
D) newly elected president of Croatia, Franco Tudjman, strongly opposed the display of patriotic and nationalistic Croatian patriotic symbols during an exhibition game in Maksimir soccer stadium in Croatia between a Croatian all-star team and the U.S. team.