Which of these is not a punctuation mark?

Correct option is A

The correct answer is (a) #

A punctuation mark is a symbol used in writing to separate sentences, clauses, or words to clarify meaning.

Common punctuation marks include:

• ? (question mark): Used at the end of interrogative sentences.
• . (period): Used at the end of declarative sentences.
• ; (semicolon): Used to separate related independent clauses or items in a complex list.

The "#" symbol, also known as the hash or pound sign, is not considered a punctuation mark. It is often used in:

• Programming: For comments (e.g., in Python or HTML).
• Social media: As hashtags (e.g., #example).
• Mathematical or symbolic contexts.

Additional Information:

• ?: A punctuation mark for interrogative sentences.
• .: A punctuation mark for declarative sentences.
• ;: A punctuation mark for separating clauses or items in a complex list.