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A program processes file names and extracts the last 3 characters representing the file extension. For example, files ' document.pdf ' and ' image.png ' would return ' pdf ' and ' png ' , respectively. Which slicing approach would work for either of the provided files?
Correct Answer: C
The slice filename[-3:] extracts the last three characters from a string. Example: filename = " document.pdf " print(filename[-3:]) Output: pdf Another example: filename = " image.png " print(filename[-3:]) Output: png Python strings support slicing, and negative indexes count from the end of the string. Therefore, the correct answer isC. filename[-3:] .
