The correct answer is:
A. Sound waves travel faster in denser mediums.
However, it's important to clarify that this statement is not universally true across all states of matter. In solids, sound generally travels faster in denser materials because denser solids typically have stronger intermolecular forces that facilitate quicker vibration transmission. In gases, the influence of density is more complex, as the speed of sound is also affected by temperature and the medium's elastic properties. In general, for ideal gases, as density increases (at constant temperature), the speed of sound decreases because the effect of density is more significant than that of the compressibility.
In summary, while the relationship is nuanced and varies between different mediums, statement A can be formulated correctly in specific contexts.
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