In each of the following questions, there is a certain relationship between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the words of the given pair bear. Choose the correct alternative.
Airplane : Cockpit : : Train : ?

Options

A. Wagon
B. Coach
C. Compartment
D. Engine

Explanation

To solve the analogy question "Airplane : Cockpit : : Train : ?", we need to identify the relationship between the first pair of words and then apply that same relationship to the second word.

### Step-by-Step Solution:

1. **Identify the relationship in the first pair (Airplane : Cockpit)**:
- An airplane is a mode of transportation, and the cockpit is the area where the pilot controls the airplane.
- Therefore, the relationship is that the cockpit is the place where the pilot operates the airplane.

2. **Identify the corresponding term for the second pair (Train : ?)**:
- Now we need to find out where the driver (or operator) of a train works, similar to how the pilot works in the cockpit of an airplane.
- The driver of a train operates from the engine of the train.

3. **Determine the answer**:
- Since the cockpit is to the airplane as the engine is to the train, the correct answer is "Engine".

### Final Answer:
The answer is **Engine**.

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