In capacity planning exercises, what tools assist in identifying processes of interest from other processes? (Select TWO correct answers.)

`acpid` is a daemon for handling ACPI events like power management and is not a general-purpose process identification tool for resource analysis in capacity planning.

`lsof` (list open files) is crucial for capacity planning because it can show which files, devices, or network connections a process has open, helping to identify resource contention or unexpected resource usage patterns by specific applications.

`pstree` displays processes in a tree-like format, showing parent-child relationships, which helps to understand how processes are launched and grouped, making it easier to identify entire application stacks or related processes contributing to overall resource consumption during capacity planning.

`w` shows who is logged on and what they are doing, providing user and session information but not the detailed process relationships or open file handles needed to identify specific processes of interest for resource analysis.