What does the function 'goHome' command Karel to do?

The command 'goHome' instructs Karel to return to its starting point on the grid. This is a fundamental function that helps in navigation for Karel, allowing it to find its way back to the original location from which it started its tasks. It is particularly useful in scenarios where Karel needs to finish a sequence of actions and return to a known position, making it easier for Karel to follow a structured path or complete a program that requires it to come back to a designated spot.

The other choices, while they may represent actions that Karel could perform, do not specifically relate to the 'goHome' command. For instance, cleaning up its workspace or changing orientation would require different commands, and making a new shelter is an entirely different task not addressed by the 'goHome' function. Thus, 'goHome' is specific and effectively supports Karel's need for navigation within the grid.