The correct answers are A) Lutherans believed that salvation could be attained by faith alone, B) Lutherans believed the Bible contained the only truth, not the Church, and C) Lutherans allowed members of the clergy to marry.
The three beliefs that made Lutherans different from Catholics are, Lutherans believed that salvation could be attained by faith alone, Lutherans believed the Bible contained the only truth, not the Church, and Lutherans allowed members of the clergy to marry.
In the case of Catholics, they believe in the seven sacraments, in the full authority of the Pope in Rome and the Vatican’s institutions. Catholics have rituals during service that they respect and believe in. Lutherans only considered two sacraments: Eucharistic and Baptism.