Core Formula/Logic: Identify the odd one out based on semantic categories: three terms relate to psychological or developmental processes, while one is a physical phase change.
Step-by-Step Solution: 1. Progression means forward movement or advancement, often in development or sequences. 2. Regression means backward movement or return to earlier states, used in psychology and mathematics. 3. Sublimation is a physical process where a solid transitions directly to gas without becoming liquid. 4. Repression is a psychological defense mechanism suppressing unwanted thoughts.
Common Pitfall: Confusing sublimation's psychological meaning (channeling impulses) with its primary physical definition leads to grouping it with psychological terms, producing option A or D as incorrect.
Shortcut/Takeaway: In odd-one-out questions, first check if one term belongs to a completely different field (e.g., physics vs. psychology) to quickly isolate the outlier.