How do businesses utilize OLAP $($Online Analytical Processing$)$ to gain insights from their data?

a$.$

By encrypting sensitive data to protect it from unauthorized access

b$.$

By automating routine business processes and tasks

c$.$

By conducting large$-$scale surveys to gather customer feedback

d$.$

By using OLAP to create interactive reports and dashboards

e$.$

By analyzing large datasets to discover patterns and relationships