Which three logs can be reviewed to troubleshoot a vCenter Server upgrade failure? (Choose three.)

vminst.log records the overall vCenter Server installation and upgrade workflow, capturing high-level progress, phase transitions, and top-level errors throughout the upgrade process.

vim-vcs-msi.log logs detailed output from the MSI installer responsible for deploying vCenter Server components on Windows, making it critical for diagnosing component-level installation failures.

pkgmgr.log records Windows package manager activity during vCenter component installation, providing granular detail about which packages failed and why during the upgrade sequence.

vc-upgrade.log is not a documented or standard log file generated by the vCenter Server upgrade process and would not be found in the standard log locations.

firstboot.log is generated by the VCSA appliance first-boot configuration scripts and is not relevant to troubleshooting vCenter Server for Windows installer upgrade failures.