Answer:
C) It claims to represent the interests of Northern Ireland's Catholic minority
Explanation:
The Irish Republican Army was an army created in Northern Ireland, which aimed to combat English imperialism and make Northern Ireland an independent country. This army made a strong use of terrorist tactics, but claimed to be acting for the defense of Catholic Christians in Northern Ireland, which, due to the English dominance, featured many Protestant Christian citizens, reaching to represent more than 60% of the population.