Step 1: Understanding the Concept:
"Fluster" is a verb that means to make someone agitated, confused, nervous, or thrown off balance.
Its synonyms include upset, disconcert, agitate, and confuse.
An antonym must represent the opposite action, such as calming, organizing, composing, or putting things in order.
Detailed Explanation:
Let us evaluate the options:
- Disconcert (B) and Upset (D): These words are closely related in meaning to fluster, acting as synonyms rather than antonyms. To disconcert or upset someone is to agitate them.
- Disobey (C): Means to fail to obey an order or rule, which is unrelated to state of agitation or confusion.
- Arrange (A): Means to put things in a neat, systematic, or proper order, representing organization, stability, and calm.
By extension, when applied to thoughts or a state of mind, to "arrange" or "settle" is the opposite of throwing someone into a state of "fluster" (chaos and confusion).
Therefore, "Arrange" is the only logical antonym among the given choices.
Step 2: Final Answer:
The correct antonym of "Fluster" is Arrange, corresponding to Option (A).