Which of the following is a possible factor for MFA?

Something you have" is a common factor for multi-factor authentication (MFA), referring to a physical object like a smart card, a hardware token, or a smartphone receiving a push notification. This factor verifies identity by requiring possession of a specific item. "Something you exhibit" is incorrect; this is not a recognized MFA factor. MFA factors are generally categorized as something you know (e.g., password), something you have (e.g., token), or something you are (e.g., fingerprint). "Somewhere you are" is a contextual factor that can enhance authentication but is not typically considered a primary MFA factor on its own. It's more about location-based access control. "Someone you know" is incorrect; this is not an MFA factor. MFA relies on independent verification methods, not social connections.