Tools and techniques for business intelligence and advanced analytics can deal with structured, unstructured, and semi-structured data. Which of the following statements about data that serve as inputs for business analytics is FALSE?

A. Structured, unstructured, and semi-structured data that serve as inputs for business analytics are from informational systems.

B. Unstructured data can be free from text, audio, video. Comments or tweets that you find on social network platforms are examples of unstructured data.

C. Semi-structured data refers to data that usually has an irregular structure such as clickstream data or web browsing data where the sequential stream of clicks is recorded as web users move across the web.

D. Structured data refers to data that has been formatted and categorized. It is data that is usually stored in databases.

To derive a single version of truth, the following must be carried out EXCEPT:

A. Extract data from operational systems and load them to a data warehouse.

B. Implement master data management program where different business units at different corporate levels have to come together to identify master data items and define each of them in terms of semantic and representation format

C. Develop master data or a set of data that is most important in business operation such as those that have to do with customers, suppliers, inventory, employees

D. Perform data cleansing to detect data that are not aligned with the standardized format, to transform them to the standardized format, as well as to remove data that are corrupt or inaccurate