In module 2, we present a systems approach model that Nicholas & Steyn attribute to Thome and Willard. This model includes the key process of systems analysis. Which of the following best describes the systems analysis process?

a. The investigation of alternative approaches to attain objectives.

b. The integration of selected approaches into a system model or a plan.

c. The application of criteria to select approaches.

d. The restatement of objectives and constraints