How does Karel signify the end of a function?

Karel programming, similar to many programming languages, utilizes specific syntax to denote the beginning and the end of various structures, including functions. A closing brace '}' is used to signify the end of a function, marking the boundary where the set of instructions for that function concludes.

This approach aligns with common practices found in other programming languages, which also use braces to encapsulate blocks of code, ensuring that the Karel can clearly understand the limits of the function’s commands. This ensures proper organization and readability of the code, as well as aids in managing the program’s flow.

Other symbols listed do not correspond to the end of functions in Karel programming. A closing square bracket '[' is generally not used for this purpose, while a semicolon ';' typically signifies the end of a statement. A colon ':' is generally used for other syntactical functions, such as indicating the start of an indented block or a conditional. Thus, the use of the closing brace '}' is the correct syntax to denote the end of a function in Karel.