In HUAWEI CLOUD Stack, to view details about a specific instance, you can run openstack...

The correct answer is C. show . Official OpenStack command-line documentation explicitly lists the command openstack server show < server > and explains that it is used to show server details . The same documentation states that the < server > argument represents the server name or ID , which matches the wording in your question exactly.

The other options are not correct in this context. openstack server list displays a list of servers rather than the details of one specific instance. query and conf are not valid standard subcommands for this OpenStack server-detail operation. Since HUAWEI CLOUD Stack operations in this area follow OpenStack command syntax for instance inspection and lifecycle management, the proper command for viewing one instance’s details is openstack server show < server > .

Therefore, after correcting the sentence format, the blank should be filled with show , and the full verified command is openstack server show < server > . That makes the correct answer C .

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