Choose the most appropriate word from the option given below to complete the following sentence.

The principal presented the chief guest with a _________, as token of appreciation.

Understanding the Sentence Context

The sentence requires a word that signifies a gift or item given as a reminder or symbol of appreciation to someone, like a chief guest visiting an institution. The principal is giving something to the chief guest to show thanks.

Analyzing the Word Options

Let's look at each option to see which one fits the context best:

- 'Momento': This is often considered a misspelling of the correct word. While it sounds similar, it's not the standard or formally recognized term for a keepsake.
- 'Memento': This word specifically means an object kept as a reminder or souvenir of a person or event. This perfectly matches the context of giving a gift as a token of appreciation. A 'memento' serves as a memory keeper.
- 'Momentum': This term comes from physics and refers to the quantity of motion of a moving body, calculated as mass multiplied by velocity (often denoted as $p=mv$). It can also refer to the driving force or impetus gained by a process. It has no relation to a keepsake or gift. For example, "The project gained momentum after the initial funding."
- 'Moment': This word refers to a brief, indefinite period of time or a specific point in time. For example, "Could you help me for a moment?" This does not fit the context of a gift.

Defining Key Terms

Here’s a breakdown of the relevant words:Conclusion on Word Choice

Based on the definitions, the word 'memento' is the only option that correctly describes an item given as a token of appreciation or remembrance. The principal presented the chief guest with a keepsake to remember their visit.