_____ is a powerful tool that enables decision makers to gain insight into the details of business data to better understand why something happened.

a. Stingray
b. Data mining
c. Online analytical processing (OLAP)
d. Drill-down analysis

d. Drill-down analysis
Drill-down analysis is a powerful tool that enables decision makers to gain insight into the details of business data to better understand why something happened. It involves the interactive examination of high-level summary data in increasing detail to gain insight into certain elements.