To understand the concept of Business Intelligence, it is the process of transforming data into actionable insights to help businesses make informed decisions.

To answer this question, the user must know the definition of Business Intelligence. Now, let's go through each option and explain why it is right or wrong:

A. A method of storing and presenting key enterprise data: This option is partially correct, but it does not encompass the entire concept of Business Intelligence. While storage and presentation of enterprise data is a part of BI, it is not the full picture.

B. Allows End users to analyze data to understand business results: This option is also partially correct. BI tools allow end-users to analyze data to understand business results. But again, it is not the complete definition of BI.

C. To accurately forecast future results: This option is incorrect. While BI can help businesses forecast future results, it is not the sole purpose of BI.

D. All of the above: This option is the correct answer. Business Intelligence involves storing and presenting data, analyzing data to understand business results, and accurately forecasting future results. Therefore, option D is the correct answer.

The Answer is: D