A student makes two mixtures, both made of the same substances. What must be true of the two mixtures?

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1 point
Both mixtures have the same density.
Both mixtures have the same temperature.
Both mixtures are physically combined in the same proportions.
Both mixtures can be physically separated into its components.

Based on the information provided, the statement "Both mixtures have the same density" is the most accurate.

a b c or d