Topic: Miscellaneous (Others Question of English Grammer),

Best Answer Explained in Below-:

The question "Which is the 'longest pause'?" refers to the use of punctuation to indicate pauses in writing. Among the options provided, the dash (specifically the em dash) serves as the longest pause in written English.

Dashes are used to create a strong break in a sentence, often to emphasize a point or to set off additional information. This break is more pronounced than that created by other punctuation marks. For instance, a comma indicates a brief pause, often to clarify a sentence or separate elements, while a hyphen connects words or concepts without indicating a pause. An apostrophe denotes possession or omission and does not imply a pause at all.

In contrast, the em dash (—) can replace parentheses, colons, or commas for an impactful separation, allowing the reader to take a moment to process the information. It creates a sense of interruption or added emphasis, making it the punctuation mark that conveys the longest pause in writing. Therefore, option B, the dash, is the correct answer as it is the punctuation that elicits the most significant pause for thought or reflection.