Select the best related pair: Crèche is to Infants in the same way as which of the following pairs?

Introduction / Context:
This analogy question focuses on the relationship between a place and the group of people that primarily uses or occupies that place. Crèche is a place where infants are looked after. You must select the pair that shows the same type of relationship from the given options. Understanding such place user relationships is useful in vocabulary and general reasoning sections of examinations.

Given Data / Assumptions:
1) A crèche is a day care centre or nursery where very young children or infants are taken care of.
2) Infants are the primary users and beneficiaries of a crèche.
3) The options are School : Pupils, Deck : Sailors, Cottage : Guests, and Aircraft : Crew.
4) We must choose the pair where the first word is a place or institution and the second word is the main group of people for whom that place exists or who regularly use it in a primary role.

Concept / Approach:
The relationship here is Place to Primary Group. A crèche is specifically designed for infants. Similarly, we need a place that is specifically associated with the second word. A school exists mainly for pupils or students. While other options may show some association between people and locations, school and pupils mirrors the institutional focus on a particular group in the same way that a crèche focuses on infants.

Step-by-Step Solution:
Step 1: Restate the model pair. A crèche is a facility meant for infants, who are cared for there during the day. Step 2: Examine option a, School : Pupils. A school is an educational institution that exists primarily for pupils or students. Step 3: Examine option b, Deck : Sailors. A deck is a part of a ship where sailors work, but a deck is not established specifically for sailors in the same sense that a crèche is established for infants. Step 4: Examine option c, Cottage : Guests. A cottage can be used by guests, but it is mainly a type of house and does not exist only for guests as a category. Step 5: Examine option d, Aircraft : Crew. An aircraft carries both crew and passengers, and the crew are employees rather than the primary target group of the aircraft. Step 6: Identify School : Pupils as the pair where the place exists for the primary purpose of educating pupils, mirroring the relation between crèche and infants.

Verification / Alternative check:
Consider whether we can say a crèche for infants and a school for pupils. Both expressions sound natural and precise. Saying deck for sailors or aircraft for crew does not carry the same direct, primary focus. This parallel supports School : Pupils as the correct choice.

Why Other Options Are Wrong:
Deck : Sailors describes a work area rather than a dedicated institution. Cottage : Guests focuses on temporary accommodation and does not capture a specially designed service for that group. Aircraft : Crew emphasises workers on board rather than the main purpose of carrying passengers. Thus, these options do not match the strong place to main group relationship.

Common Pitfalls:
Students may be attracted to Deck : Sailors because sailors are strongly associated with ships, but the analogy is about facilities primarily created for a particular group. A crèche is created for infants, and a school is created for pupils, which is more exact than the looser association between sailors and the deck of a ship.

Final Answer:
The best related pair is School : Pupils, which matches the relationship Crèche : Infants.