Which of the following figures is the 'odd one out'?
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A
A figure resembling the letter 'F' rotated 90 degrees clockwise.
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B
A figure resembling the letter 'F' rotated 180 degrees.
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C
A figure resembling a mirror image of the letter 'F'.
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D
A figure resembling the letter 'F' rotated 270 degrees clockwise.