Answer:
a. Local user profile.
Step-by-step explanation:
Local user profile is a type of user profile which is stored in the C:\Users folder and is automatically created when a user logs on to the computer for the first time and it is being stored on the local hard disk of the computer.
Generally, in Microsoft windows any change made to the local user profile is peculiar to the user and the host computer on which the change is made.
Hence, local user profiles avails several users the opportunity of sharing a single computer with their respective user settings and data.