Final answer:
Water has its minimum density at 4°C due to anomalous expansion.
Step-by-step explanation:
The correct answer is B. Water has its minimum density at 4°C.
Water exhibits anomalous expansion, meaning it expands when it is cooled below 4°C. As it cools further, it contracts until it reaches its maximum density at 4°C. Below 4°C, water expands as it freezes, which is why ice floats on water.
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