Refer to the Exhibit

Multiple Choice

Refer to the exhibit. You are preparing to perform an upgrade on an unconfigured VPLEX Metro. When you run the ndu pre-check command, it indicates that it has failed and there are no first upgraders. In your troubleshooting, you run the version -a command. Based on the output, what is the reason for the failure?

A) health-check --full was not run
B) Directors are at incompatible code levels
C) ndu pre-check --force flag was not used
D) Directors are not connected.