Bill can paint either two walls or one window frame in one hour. in the same time, frank can paint either three walls or two window frames. to minimize the time spent should specialize in painting walls, and should specialize in painting window frames

The correct words for the blank spaces are:  Frank; Bill.

Explanation:

In order to minimize the time spent, it is imperative to distribute the work activities according to the skills of the employees who will take care of it. It is important to consider the type of activities that need to be carried out as well to avoid bad assignations.

In the case, we must consider that in a building there are more walls than window frames so, as Frank paints more walls during an hour he must take care of the wall painting so Bill can be assigned the window frame painting.

c is the answer, and do you have a ps4?

answer; consideration;