Answer:
All the above statements are true.
Step-by-step explanation:
Quick Access toolbar: It can be located at the top left-hand corner of the screen or above the ribbon in almost all office applications
it contains all those functionality that is used frequently.it can be customizable
It can contain functions that are independent
It can be modified to contain any function that you use frequently.
It can contain functions that are also in the ribbon.
It can be modified to contain any function that you use frequently.