What could be the problem and how should you fix it?

You start up a Follower and try to connect to it with a REST call using the server certificate, but you get an SSL connection refused error.

What could be the problem and how should you fix it?
A . The certificate does not contain the Follower hostname as a Subject Alternative Name (SAN). Generate a new certificate for the Follower.
B . One of the PostgreSQL ports (5432. 1999) is blocked by the firewall Open those ports.
C . Port 443 is blocked; open that port.
D . The certificate is unnecessary. Use the command option to suppress SSL certificate checking.

Answer: A