This question tests knowledge of psychological concepts related to decision-making. The correct answer is A because 'decision fatigue' is the term used to describe the phenomenon where individuals simplify decisions to avoid more complex ones, often leading to less optimal outcomes. Option B is incorrect because 'analysis paralysis' refers to over-analyzing a situation to the point of inaction. Option C is incorrect because 'overthinking' is a general term and not specific to decision-making. Option D is incorrect because 'procrastination' is the act of delaying or postponing tasks.