Final answer:
In programming, each repetition of a loop is known as an iteration. This term signifies one complete cycle through the loop's instructions.
Step-by-step explanation:
Each repetition of a loop is known as an iteration. In programming, loops are fundamental constructs that allow a set of instructions to be executed repeatedly based on a condition. Each time the loop is executed, it is considered one iteration. So, the correct term from the given options is iteration. It’s not revolution, orbit, or resolution as these terms refer to different concepts: a revolution is a full circle movement, an orbit is the path one body in space takes around another, and a resolution is a firm decision to do or not to do something.