An interaction between two or more persons is considered a strategic interaction when:
A. All people involved are working together to achieve a common goal best achieved through joint action.
B. There is no optimum result possible for anyone in the group, so each person tries to avoid a worst-case scenario.
C. All people involved have a clear path or action that will give them optimal results regardless of what any other person chooses.
D. An individual's best choice may depend on what the others choose, and others' best choice may depend on what the individual chooses.
