The correct answers are A) Catholics, B) Muslims, E) Jews.
<em>In Spain, the three religions that were in almost constant conflicts were Catholics, Muslims, and Jews.
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In the Middle Ages, the number of Muslims increased in Spain. The reason was the migration of Arabs and Berbers. During this time some Christians converted to Islam. By 1055, many Jews arrived to Spain territory. Jewish ideas and principles flourished in this time. Spain, being mostly Catholic, faced many conflicts with Muslim and Jewish religions during these years. After years of fight, King Ferdinand II of Aragon and Queen Isabella I of Castille established the Spanish Inquisition in 1478 in order to purify Spain from Jewish and Muslims ideas.