are often organize commonly used commands into a set of tabs.

Ribbons

Explanation:

Ribbons are used to organize commands into a set of tabs. These tabs change based on the activity done. The settings in each ribbon can be edited, that is, more commands can be added or removed.

For instance, when working on a Microsoft word document and a shape is drawn, a 'format' ribbon automatically appears. This ribbon contains commands on adjusting this shape appropriately.

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses