In the Mass, Agnus Dei is which part of the Ordinary?

• A. the fifth part of the Ordinary
• B. the Lamb of God
• C. the Sanctus
• D. the Gloria

Answer: (A)

In the Mass, the Ordinary consists of five fixed prayers in a set order: Kyrie, Gloria, Credo, Sanctus, Agnus Dei. Agnus Dei is the final one, the fifth, and is sung after the Sanctus as a prayer for mercy and peace, often concluding with Dona nobis pacem before Communion. The term "Agnus Dei" is Latin for "Lamb of God," which is its text, not the position within the Ordinary. So the best answer identifies its place as the fifth part of the Ordinary. The alternative "Lamb of God" describes the text rather than its place in the sequence, and the other options correspond to earlier sections of the Ordinary (Gloria, Sanctus) or to the meaning rather than the position.