Splunk offers several premium enhanced solutions, which include Splunk User Behavior Analytics (UBA), Splunk IT Service Intelligence (ITSI), and Splunk Enterprise Security (ES). Splunk UBA focuses on identifying malicious activities by analyzing user behavior, ITSI provides a comprehensive view of IT services health and performance, and ES is a security information and event management (SIEM) solution that helps detect and respond to security threats in real-time. Therefore, the correct answers are A, B, and C.