Income order based on professional experience

Steps:

• Identify experience levels: Z has 20 years, X has 10 years, Y has 5 years.
• Apply income-experience correlation: Salaries rise with tenure due to promotions and skills.
• Rank by descending experience: Z first, then X, then Y.
• Confirm no other factors override this pattern.

Why C is correct:

• C (Z > X > Y) matches the direct income-experience formula where pay scales linearly with years worked.

Why the others are wrong:

• A: Places X highest, ignoring Z's superior experience.
• B: Ranks Y above X, contradicting Y's lower tenure.
• D: Positions Y above X, which reverses their experience order.

Final answer: C