What language is primarily used in Splunk for searching and reporting?

The primary language used in Splunk for searching and reporting is Search Processing Language (SPL). SPL is specifically designed to work with the data indexing and search capabilities of Splunk, allowing users to construct complex queries to extract insights from a vast array of data sources.

SPL provides powerful functions to filter, transform, and visualize data, making it suitable for generating reports, dashboards, and analytics. It is tailored to handle time-series data effectively, which is a common use case in Splunk for log and event data analysis. The syntax and structure of SPL allow for easy manipulation of search results, making it user-friendly for both beginners and experienced users alike.

In contrast, Structured Query Language (SQL) is used primarily for relational database management systems and is not compatible with Splunk's architecture. JavaScript Query Language (JQL) and Generalized Query Language (GQL) are not standard languages associated with Splunk and do not relate to its data manipulation or reporting capabilities. Thus, B is the only appropriate answer in this context.