_____ divides the pool of potential customers into subgroups usually defined in terms of demographic characteristics.

To select several contiguous columns, click the header of the first column, ________ the header of the last column

A) press and hold Shift, and click B) then right-click C) then double-click D) press and hold Ctrl, and click

Decision-making on a program depends on ____.

A. classes B. conditions C. primitives D. objects