You administer a group of 10 client computers that run Windows 10. The client computers are members of a
local workgroup. Employees log on to the client computers by using their Microsoft accounts.
The company plans to use Windows BitLocker Drive Encryption. You need to back up the BitLocker recovery
key.
Which two options can you use? (Each correct answer presents a complete solution. Choose two.)

A.
Save the recovery key to a file on the BitLocker-encrypted drive.

B.
Save the recovery key in the Credential Store.

C.
Save the recovery key to OneDrive.

D.
Printthe recovery key.

Explanation:
C: The Bitlocker recovery key is saved in your OneDrive account in the cloud.
D: The recovery key can be printed.
IncorrectAnswers:
A: It’s not possible to save a Bitlocker key on the same disk.
B: It’s not possible to save a Bitlocker key in the credential store.
https://support.microsoft.com/en-us/help/17133/windows-8-bitlocker-recovery-keys-frequentlyasked-questions