In ICT, which one of the following pairs of an acronym and its expansion is incompatible?

A.csv - Comma Separated Variables ✓ Correct

B.rtf - Rich Text Format

C.pdf - Portable Document Format

D.png - Portable Network Graphics

Correct answer: (A) .csv - Comma Separated Variables

Explanation

The .csv extension means Comma Separated Values, not Comma Separated Variables.

A CSV file stores tabular data with fields separated by commas.

The .rtf extension correctly stands for Rich Text Format with basic styling.

The .pdf extension correctly stands for Portable Document Format.

The .png extension correctly stands for Portable Network Graphics.

CSV files open in any spreadsheet or plain text editor.

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