What is the difference between a cold data tier and a hot data tier in a hybrid cloud data protection solution?

What is the difference between a cold data tier and a hot data tier in a hybrid cloud data protection solution?
A . A cold data tier is faster than a hot data tier
B . A hot data tier is optimized for data access, while a cold data tier is optimized for cost savings
C . A hot data tier is encrypted for protection, while a cold data tier is not
D . A cold data tier is replicated more frequently than a hot data tier

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Answer: B