Step 1: Understanding the context of body language.
In body language, the crossing of arms often signifies defensiveness, passiveness, or aggressiveness. It can be a protective gesture when someone feels vulnerable or confrontational.
Step 2: Analyzing the options.
(A) Crossing: Correct. Crossing the arms often indicates a closed-off posture, which can depict passiveness or aggressiveness.
(B) Movement: Incorrect. Movement can indicate different emotions, but it is not specifically related to passiveness or aggressiveness.
(C) Rotation: Incorrect. Rotation is more associated with changes in direction or posture, not with passiveness or aggressiveness.
(D) Extension: Incorrect. Extension of the arms can be an open gesture, indicating openness or assertiveness, not passiveness or aggressiveness.
Step 3: Conclusion.
Therefore, the correct answer is (A) Crossing, as it is commonly associated with defensiveness or aggression.
Final Answer: Crossing.