How do you indicate the end of a loop in Karel?

In Karel, the end of a loop is indicated by closing the repeat block with a bracket. This structure allows Karel to know where the instructions for the loop terminate, thereby defining the start and end of the repeated actions. When a repeat block is defined, everything inside the brackets will run repeatedly for the specified number of times or until a certain condition is met. By properly closing the repeat block with a bracket, it ensures clear organization of the code and helps avoid syntax errors, leading to smoother execution of commands.

The other choices involve common programming terms but don't correctly reflect the syntax used in Karel programming. While the terms might suggest some form of loop control, they do not align with Karel's actual language structure for indicating the end of a loop. Thus, using brackets is the appropriate and accurate method for signaling the conclusion of the repeated instructions in Karel's code.