is a subset of a data warehouse in which only a focused portion of the data warehouse information is kept. A. Data dictionary B. Data mine C. Database D. Data mart

Option D (data mart) would be the right choice.

Explanation:

A pattern was used to acquire customer information in the data warehouse level or environment is known as a data mart. It is indeed a framework unique to the knowledge warehouse being used by the team having the business sphere. Per corporation has a particular data mart stored throughout the archive of the database system.

The other options offered are not relevant to the example mentioned. So, the solution above is the right one.

I’m sorry, i don’t speak russian.