What is the name of the section on the right side of the church where readings and prayers are often proclaimed?

The correct answer is Epistle. In many Christian liturgical traditions, the Epistle refers to a specific section of the service where readings from the Letters of the Apostles in the New Testament are proclaimed, usually from the right side of the church. This is often set apart for readings and prayers that are typically recited after the Gospel to highlight significant teachings and doctrine.

While the chancel is the area around the altar of a church, and the aisle and nave refer to different parts of the church's architecture, it is the Epistle's designated purpose that aligns with the question about where specific readings and prayers occur. The naming reflects historical usage and organization within the liturgical context.