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Assume that a company uses ApsaraDB for PolarDB.

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Assume that a company uses ApsaraDB for PolarDB. The company commonly queries users based on their basic information, including: addresses, company names, and ID numbers. In this scenario, what is the best practice for creating a database index (or indexes)?

A.

Create a b-tree index on each column to be searched.

B.

Create a hash index on each column to be searched.

C.

Create a gin index for multiple fields.

D.

Create a gist index for multiple fields.

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