Final answer:
Passwords and social media accounts are examples of something you have authentication controls.
Step-by-step explanation:
Authentication controls are mechanisms that help verify and validate the identity of individuals or entities accessing a system or network. In the context of the given options, passwords and social media accounts are examples that employ authentication controls. Passwords are commonly used as a means of authentication, requiring users to enter a unique combination of characters to access their accounts. Similarly, social media platforms often employ authentication mechanisms to ensure that only authorized users can access their accounts.