In this analogy question, Lips are related to Smile, so you must select the word that best completes the pair Eyes : ? from the given alternatives.

Introduction / Context:

This is a classic verbal analogy question where you are given a relationship between two words and asked to find a word that creates a similar relationship with a new base word. The pair "Lips : Smile" describes an action performed using a body part. To solve the analogy, you must determine which of the given options describes an action commonly performed using the eyes, in the same way that smiling is an action performed using the lips.

Given Data / Assumptions:

- Lips are a part of the mouth and are used when a person smiles.
- Smile is an expression or action made mainly with the lips and face.
- Eyes are organs of vision and can also be used to express emotions or signals.
- The options are Black, Wink, Two, Spectacles and Vision.
- We assume standard meanings of all the words in the context of human body parts and their common actions.

Concept / Approach:

The logical connection in the first pair "Lips : Smile" is that lips are used to produce a smile. Thus, the pattern is "body part : action performed using that body part". For the second pair, we need to find an action typically associated with eyes. Among the options, "Wink" is a deliberate action done with the eyes, used to signal or communicate. Other options are either objects related to eyes, numerical descriptions, or general concepts, not specific actions performed by the eyes.

Step-by-Step Solution:

Verification / Alternative check:

We can verify by attempting to frame sentences. One can say, "You smile with your lips" and "You wink with your eyes." Both sentences show a clear body part to action relationship. None of the other options work naturally in this kind of sentence. For example, "You black with your eyes" or "You spectacles with your eyes" do not make sense as actions. This verification confirms that Wink is the only correct choice.

Why Other Options Are Wrong:

Black is just a colour and has no direct action relationship with eyes in the way smiling relates to lips.

Two only indicates a number and does not represent an activity or expression carried out by the eyes.

Spectacles are objects worn with the help of the eyes and nose, not an action performed by the eyes themselves.

Vision is the ability to see, which is a function of the eyes, but it is not a discrete voluntary action like winking or smiling.

Common Pitfalls:

A common mistake is to pick a word loosely associated with eyes, such as Spectacles or Vision, instead of focusing on a strict analogy of action. Students sometimes confuse function and action, but analogy questions demand a very precise parallel. Another pitfall is ignoring the grammatical nature of the second term; Smile and Wink are both verbs or verbal nouns representing actions, not static objects or qualities.

Final Answer:

The correct completion of the analogy is Eyes : Wink.