Analogy — Choose the pair with the same relation: Ideas : Brain

Introduction / Context:
“Ideas : Brain” denotes a contents-in-container (or locus) relation: ideas reside in or are produced/held by the brain. We seek the option where the second item is an appropriate holder or repository for the first item.

Given Data / Assumptions:

• Brain is the seat/container of ideas.
• We prefer clear containment/storage analogs.

Concept / Approach:
Classify each option by relation type—creator→product, subset→set, location→object, or container→contents—and pick the one that mirrors “holder→held.”

Step-by-Step Solution:
(a) Literature : Author → reversed creator relation; author creates literature, not literature contains author.(b) Clouds : Ocean → hydrologic cycle link, not container relation.(c) Money : Bank → banks store/hold money (container→contents), matching the stem’s idea.(d) Planets : Earth → Earth is a planet (member–set reversal), not a holder.

Verification / Alternative check:
“Brain holds ideas” aligns closely with “bank holds money.”

Why Other Options Are Wrong:
(a) Creator inversion; (b) process/weather relation; (d) class–member mismatch.

Common Pitfalls:
Confusing creator/product with container/content. The stem emphasizes locus/containment.

Final Answer:
Money : Bank