Jan visited a modern, TLS-protected web site. How did Jan's browser validate the site's certificate?
O The browser used a built-in trust anchor to validate the certificate received from the server.
O The browser searched a list of root certificate authorities and chose the appropriate trust anchor from that list.
O The chosen trust anchor validated the certificate. The server provided a chain of certificates, at least one of which was issued by a root authority included in the browser's list of authorities.
O The browser used a single, built-in trust anchor to validate a chain of certificates provided by the server.