Final answer:
IA investigation typically refers to an Internal Investigation within an organization to probe internal issues. Though different in focus, IA investigations share a similar systematic approach with medical and police investigations, all aiming to understand and prevent future problems. so, option 2 is the correct answer.
Step-by-step explanation:
When referring to an IA investigation, it typically means an Internal Investigation. These investigations are commonly conducted within an organization, such as a police department, to examine allegations of wrongdoing, policy violations, or unethical behavior by employees or members of the department. Comparing this to examining COVID-19 or a robbery case, investigations in these contexts, whether medical or criminal, both involve a comprehensive process to understand the factors and motives involved, and ultimately to prevent further issues.
For example, in medical investigations into COVID-19, researchers explore the history and spread of the virus to develop methods to stop it. Similarly, police investigators solving a robbery case look into the backstory connecting victims and criminals, as well as the reasons for the crime spree, aiming to prevent future crimes. Overall, IA investigations are aligned in approach but specific in their focus to the organization in question.