What is the purpose of the VIS?

The correct answer focuses on the role of the Visa Information System (VIS) in validating the identities of individuals who are applying for Schengen visas. The VIS is designed to enhance security and streamline the visa application process by ensuring that the identities of applicants can be verified efficiently. This system allows for the storage and retrieval of biometric and biodata information, aiding in the authentication of visitors' identities and reducing the risk of fraud.

While the other options reference various aspects related to visas and immigration, they do not accurately reflect the primary function of the VIS. Overseeing visa information systems and managing integration systems may involve broader administrative or technical oversight roles, which are not the core purpose of the VIS. Additionally, while the VIS can provide information related to immigration status indirectly through its identity verification processes, it does not specifically aim to provide comprehensive immigration status details itself. Thus, understanding the primary function of the VIS as a tool for identity validation is essential for grasping its significance within immigration processes.