Which best describes the role of the new and testament in Christianity

The New Testament is a collection of writings that comprise the second part of the Christian Bible and is considered the sacred scripture for Christians. It contains the teachings of Jesus Christ, the early Christian church, and the apostles. The New Testament serves as a guide for Christian beliefs and practices, and provides a foundation for understanding the life, death, and resurrection of Jesus Christ, as well as the establishment and growth of the early Christian church. It is a central component of Christian faith and doctrine, and is considered essential for Christians to understand and follow in their daily lives.