You need to make a backup copy of the encryption keys

You administer a Windows 10 Enterprise computer.
The computer is configured to encrypt several folders by using a self-signed Encrypted File System (EFS)
certificate.You need to make a backup copy of the encryption keys.
What should you do?

A.
Open the Certificates console and connect to the user account certificates. Export the self-signed EFS
certificate from the Trusted People folder to a Canonical Encoding Rules (CER) file.

B.
Open the Certificates console and connect to the user account certificates. Find the personal self-signed
EFS certificate and export it to a Personal Information Exchange (PFX) file.

C.
Open the Certificates console and connect to the user account certificates. Export the personal self-signed
EFS certificate from the Trusted Root Certification Authority folder to a Personal Information Exchange
(PFX) file.

D.
Open the Certificates console and connect to the computer account certificates. Export the self-signed EFS
certificate from the Trusted People folder to a Canonical Encoding Rules(CER) file.