What is the command used to remove images in Docker?

The command used to remove images in Docker is "docker rmi". This command specifically stands for "remove image" and is designed for that purpose. When you execute "docker rmi [image_name]", it removes the specified image from the local Docker environment.

Understanding the command's components is crucial. The "rmi" option efficiently removes one or more images, facilitating clean-up of unused or obsolete images from your system, which helps in managing disk space effectively.

Other options provided do not fulfill the requirement of removing images. For instance, the "docker image ls --no-cache" command lists images but does not remove them, serving a different function related to inspecting available images. Similarly, "docker remove images" is not a valid Docker command, and "docker image delete" does not exist in Docker's command set. The clarity in command structure and function distinguishes "docker rmi" as the correct choice for removing images.