How do you make Karel repeat a set of commands until a condition is met?

Using a loop structure like "while" enables Karel to execute a series of commands repeatedly until a specified condition is no longer true. This type of loop checks the condition before each execution of the commands. If the condition evaluates to true, Karel will continue to execute the commands within the loop. This ensures that Karel can keep performing the actions as long as the condition remains satisfied.

For instance, if the condition is whether Karel is facing a wall, the "while" loop will allow Karel to move forward repeatedly until it encounters a wall. This is particularly useful for scenarios where the exact number of repetitions isn't known in advance, as the loop can adapt to the situation dynamically.

Other provided options use different looping approaches that either depend on a fixed number of iterations or check conditions after executing the commands, which may not align with the requirement for Karel to continue until a condition is met.