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Which of the following best describes why an augmented fourth and a diminished fifth are considered enharmonically equivalent intervals, even though they have different names?
A. They share the same note letters but are spelled differently in different keys.
B. They contain the same number of half steps between notes.
C. They both represent perfect consonances in all musical contexts.
D. They sound different but are written the same way in notation.
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B, will be the answer