What is the main idea behind the project triangle? Select the best answer.

A) Scope, schedule, cost are interdependent and not logically managed independently.

B) Scope and schedule are really subsets of cost (either direct or indirect).

C) By planning scope, schedule, and cost the project will be in the green zone of satisfaction.

D) Project decisions are always driven by scope, schedule, cost.

E) The theory of constraints applied to project management.

Thank you!