Answer:
C, proprietary software
Explanation:
Proprietary software, also known as non-free software, is computer software for which the software's publisher or another person reserves some rights from licensees to use, modify, share modifications, or share the software. It sometimes includes patent rights.
Answer:
account recovery
Explanation:
account recovery, provides options for getting access to your old password or resetting the account to a temporary password; users will change to a permanent password upon first login.
A server stopped provide service to 100 users
