| A | B |
|---|
| 72. Which is the one true Church established by Christ? | The one true Church established by Christ is the Catholic Church. |
| 73. How do we know that the Catholic Church is the one true Church established by Christ? | We know that the Catholic Church is the one true Church established by Christ because it alone has the marks of the true Church. |
| 74. What are the chief marks of the Church? | The chief marks of the Church are four: It is one, holy, catholic or universal, and apostolic. |
| 75. Are all obliged to belong to the Catholic Church in order to be saved? | All are obliged to belong to the Catholic Church, in some way, in order to be saved. |
