If we strike a wooden table with a steel spoon lightly we hear a feeble sound but if we hit the wooden table hard with steel spoon, a loud sound is heard because:

• A. Amplitude of vibration is high in case of loud sound.
• B. Amplitude of vibration is low in case of feeble sound.
• C. Both [a] and [b]
• D. Either [a] or [b]
• E. None of these