How do businesses utilize OLAP $($Online Analytical Processing$)$ to gain insights from their data?O a$.$ By automating routine business processes and tasksO b$.$ By conducting large$-$scale surveys to gather customer feedbackO c$.$ By analyzing large datasets to discover patterns and relationshipsO d$.$ By using OLAP to create interactive reports and dashboardsOe. By encrypting sensitive data to protect it from unauthorized access