To trace an SSL error for a client connecting to an HTTPS virtual server, you need to capture the relevant traffic and then analyze it. The correct command must ensure that the capture file includes a comprehensive view of the SSL packets. Option A correctly uses tcpdump to capture traffic on the external interface and saves it to a file. It then uses ssldump to read and analyze the captured packets. This option specifies the correct IP address (10.10.1.30), using the correct port (443), and captures the required details (-X for hex output, -e to include link-level headers, -nn to disable name resolution, and -vvv for verbose output).