Select the most appropriate option to fill in the blank.
For no ___________ reason, the train suddenly stopped, and the passengers went into a state of panic.

Correct option is D

The correct option to fill in the blank is (d) apparent.
Explanation:
· The word "apparent" means "clearly visible or understood; obvious" (स्पष्ट).
· The phrase "For no apparent reason" is a commonly used expression to indicate that something happened without a clear cause.
· "Florid" means excessively ornate or flowery (अलंकृत), which does not fit the context.
· "Gaudy" means excessively bright or showy (भड़कीला), which is incorrect here.
· "Taken" is unrelated to the meaning required in the sentence.
Example: The lights went out for no apparent reason, leaving everyone confused.