Select the most appropriate word to fill in the blank.

A reward is a ______ which motivates a person to achieve excellence in his field.

recognition

The most appropriate word to fill in the blank is:

☀ recognition

Explanation for all options:

1. Monument: This word refers to a structure or statue that commemorates a person or event. It doesn't fit the context of motivating a person.

2. Collection: This word refers to a group of items or things. It doesn't fit the context of motivation or achieving excellence.

3. Recognition: This is the correct word. It means acknowledgment or appreciation for one's achievements. In the context of the sentence, a reward is something that motivates a person by providing recognition for excellence.

4. Memorial: This word refers to something that serves as a tribute to a person who has passed away. It's not relevant to the context of motivation and achieving excellence.