What is the practical significance of the Apostle Paul's teaching on spiritual gifts in 1 Corinthians 12-14 for the unity and edification of the church?

A It emphasizes the superiority of certain spiritual gifts over others, leading to a hierarchical structure within the church. B It highlights the importance of each member using their unique gifts in service to others, fostering interdependence and mutual encouragement within the body of Christ. C It encourages believers to seek only the most spectacular and attention-grabbing gifts to attract new members to the church. D It suggests that spiritual gifts are primarily for personal benefit and self-improvement, rather than for the common good of the church.