Answer:
The correct words for the blank spaces are: Frank; Bill.
Step-by-step 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.