Final answer:
The quick command button to access the help screen is the F1 key. This function key is standardized across different software and operating systems to provide users with assistance and support information related to the program they are using.
Step-by-step explanation:
The quick command button to locate the help screen is a) F1. The F1 key is universally used across various operating systems and applications as a shortcut to bring up the help menu or support documentation for the active program or window. When you're in a program and you press F1, it will usually launch a help window specific to the context you're in or the issue you might be facing.