Which statement is true concerning the installation of an Oracle Grid Infrastructure 12c patchset and its status during the installation? 

Answer options:

A. Some grid infrastructure patchsets may not be installed in a rolling fashion.
B. They can be applied in-place.
C. When performing rolling patches, crsctl query crs softwareversion always displays the lowest version of the software running anywhere in the cluster
D. When performing rolling patches, the VIPs for the node being patched are relocated to another node.

C

To check the software versions on a single node or if the software version is the latest version installed in on a cluster. You would use this option when you do the rolling upgrade. $ crsctl query crs softwareversion [hostname] References: https://blogs.oracle.com/myoraclediary/entry/how_to_check_clusterware_version