Now, this is a real choice. It involves conflicting emotions of equal strength. One must not confuse decisions, opportunities and choice. Decisions are the mere selection of courses of action. Opportunities are current states of the world, which allow for a decision to be made and to affect the future state of the world.
Choices are our conscious experience of moral or other dilemmas.
Christoff finds it strange that Truman having discovered the truth insists upon his right to make choices, i.e., upon his right to experience dilemmas. To the Director, dilemmas are painful, unnecessary, destructive, or at best disruptive. Truman is programmed not in the sense that his spontaneity is extinguished. The Director and fat-cat capitalistic producers want him to be spontaneous, they want him to make decisions. But they do not want him to make choices.