Correct Answer: C
You can assign record types to users in their profile or permission sets, or a combination of both. Record type assignment behaves differently in profiles and permission sets. After you create record types and include picklist values in them, add record types to user profiles. If you assign a default record type to a profile, users with that profile can assign the record type to the records that they create or edit.
Option A is incorrect because field level security doesn’t exist for record types.
Option B is incorrect because record types are assigned to page layout and it doesn’t have to be a brand-new page layout
Option D is incorrect because user records are not linked to record types
Reference:
https://help.salesforce.com/articleView?id=permissions_record_type_access.htm&type=5