The application team is having issues accessing their data in their /app file system. Give the following outputs: Which of the following is the reason for this issue?

While an incorrectly mounted filesystem can cause access issues, a missing physical volume represents a more fundamental storage infrastructure problem that would prevent any proper mounting. If the physical volume itself is missing, the filesystem cannot even be presented for mounting.

An incorrect `/etc/fstab` configuration might prevent automatic mounting at boot, but if the issue is a missing physical volume, correcting `fstab` alone will not resolve the underlying problem of unavailable storage hardware. The entry might be syntactically correct but unable to find its device.

When a physical volume that is part of a volume group is missing or offline, the logical volumes built upon that volume group cannot be activated or accessed. This unavailability of the underlying storage prevents the system from mounting the `/app` filesystem, leading directly to data access issues for the application.

Data deletion refers to the removal of files or directories, which is a data loss event. A 'physical volume missing' scenario points to the unavailability of the storage device itself, not necessarily the data being intentionally or accidentally erased.