Final answer:
Eternal redemption in Christianity denotes the forgiveness of sins and the granting of eternal life, achieved through the grace of God and the sacrificial death of Jesus Christ. It is a concept highlighted in Christian sacraments and practices such as baptism, communion, and confession. Therefore, the correct option is a.
Step-by-step explanation:
The concept of eternal redemption refers to the Christian belief that individuals are forgiven for their sins and granted eternal life through the grace of God, particularly through the sacrifice of Jesus Christ on the cross.
This religious teaching is deeply rooted in the sacraments and practices of Christianity, such as baptism, which is thought to remove original sin, and communion, which is the spiritual connection with God symbolized by the bread and wine representing the body and blood of Christ.
Additionally, the practice of confession serves to absolve a person from sins through the priest's absolution and the assignment of penance.
According to Christian belief, Jesus is the second Adam, countering the original sin of Adam and Eve with his sacrifice, thus enabling humanity to enter paradise.
Christians would engage in various sacraments like confirmation, marriage, and even the last rites at the moment of death, which are believed to spiritually guide and strengthen their connection with God throughout their lives, ultimately leading to redemption.