Please select A,B,C, or D thats all I want honestly you'll tend to leave these long explanations that don't explain nothing its a simple choice

Multifactor authentication (MFA) is considered an important security control for what purpose? a. MFA identifies a cyberattack before it can cause damage b. MFA distinguishes a known device from an unknown device c. MFA provides an extra level of identity assurance (that is, validates users are who they claim to be) d. MFA establishes internal network controls.