What object oriented feature can we use to have a single test program, with one set of method calls in which the user can decide which bag implementation (array- or link-based) needs testing?

After you have identified alternative solutions

a. You are ready to evaluate the solution(s). b. You are ready to select the best solution. c. You are ready to write the algorithm. d. You are ready to identify the knowledge base.

Using functions in a program is called _____________.

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