Which principle of behavior expects you to resist adversary exploitation despite the pervasive physical and environmental control retained by the captor?

There are 6 principles of behavior but the one expects you to resist adversary exploitation despite the pervasive physical and environmental control retained by the captor is number 5: "When they interrogate me I am obliged to give my name, rank, service number and date of birth. I will avoid answering any other question as best I can. I will not make oral or written statements that are disloyal to my country or its allies, nor harmful to its cause"