The link between a file type and its default program is called a(n) ____.

In the Clock Solution, the ____ and Sleep methods are required so that you can view each of the minute and second values in the interface.

A. Show B. Renew C. Display D. Refresh

As you insert and delete rows and columns, Excel adjusts _____ cell references in formulas to keep them accurate.

Fill in the blank(s) with the appropriate word(s).