An important force for Christian unity in the twentieth century was which of the following?

• A. Evangelism
• B. Ecumenism
• C. Interfaith dialogue
• D. Schism

Answer: (B)

Ecumenism is the movement to promote unity among Christian churches. In the twentieth century, this idea gained real momentum as Christians across denominations sought to move beyond longstanding divisions toward visible unity, cooperation, and shared mission. Powerful developments, such as the World Council of Churches and ongoing dialogues among Catholic, Orthodox, Protestant, and Anglican communities, pushed for common worship, mutual recognition of baptism, and collaborative social action. This concerted push to bridge divides and work together across traditions is what makes ecumenism the best fit for explaining Christian unity in that era.

Evangelism focuses on spreading the Christian faith to new people, not on uniting existing Christian groups. Interfaith dialogue involves conversations between different religions, not within Christian denominations. Schism denotes a split that creates division rather than unity.