What happens when the following command is run?

What happens when the following command is run? # authconfig – – passalgo = md5 – –
update

A.
It produces the MD5 checksum of the input data.

B.
It configures the MD5 checksum for newly authored documents

C.
It converts the stdio input to MD5 algorithm.

D.
It changes the user password hashing algorithm to MD5.

Explanation: