Choose the meaningful life-progression order. Items: a. Income, b. Fame, c. Education, d. Employment. Select the order that reflects a common causal progression.

Introduction / Context:
These terms describe a typical socio-economic progression. While exceptions exist, the widely assumed path is that education enables employment, employment yields income, and sustained achievement or public impact may bring fame.

Given Data / Assumptions:

• Education equips skills and credentials.
• Employment uses those skills in the labor market.
• Income is a result of employment.
• Fame may follow notable success, not generally the cause of the earlier steps.

Concept / Approach:
Choose a chain where each element plausibly enables the next. Avoid putting outcomes before prerequisites (e.g., income before employment, or fame before measurable output).

Step-by-Step Solution:
(c) Education → builds capability.(d) Employment → applies capability.(a) Income → remuneration for employment.(b) Fame → possible consequence of significant achievements.

Verification / Alternative check:
Check causality: removing education typically reduces employability; removing employment removes the main stable source of income; fame does not generally precede these in ordinary cases.

Why Other Options Are Wrong:
They invert prerequisites and outcomes (e.g., placing income or fame before education/employment).

Common Pitfalls:

• Equating fame with success in all fields. Many careers never involve fame, but do involve income derived from employment supported by education.

Final Answer:
c, d, a, b.