Which sacrament is confirmation?

Confirmation is a scrament that is normally taken as a young adult. Baptism, reconciliation, and first communion are all lead to a catholic by parents of a guardian. Confirmation is that person deciding whether or not they want to continue the catholic teachings of the church. Durning this sacrament the priest or bishop puts a cross of anointing oil on your forehead and blesses you with your chosen Saint name.
Confirmation is the third and final sacrament of initiation. The three sacraments of Initiation are baptism, confirmation, and the Most Holy Eucharist. In every Rite of the Church, except the Latin Rite, they are all given together to newborns, in the Latin Rite, they are separated.

Confirmation completes Baptism and is necessary for the completion of baptismal grace. For "by the sacrament of Confirmation [the baptized] are more perfectly bound to the Church and are enriched with a special strength of the Holy Spirit. Hence they are, as true witnesses of Christ, more strictly obliged to spread and defend the faith by word and deed." (Lumen Gentium 11; cf Ordo confirmationis , Introduction 2.)