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Why the device is unique?

A. Because it gives sound directly to the inner ear
B. Because it gives vibrations to the magnet
C. Because it transmits sound faster to the ear
D. Because it transmits vibrations directly to the magnet and then to the inner ear
E. Because it takes little time to produce clearer sound.
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সঠিক উত্তরঃ D. Because it transmits vibrations directly to the magnet and then to the inner ear
Explanation: