Target Wake Time (TWT) is a power-saving feature introduced in 802.11ax (Wi-Fi 6) that allows devices to negotiate specific times to wake up and communicate, reducing the need for constant listening and thereby conserving battery life. This feature is particularly beneficial for IoT devices and other battery-powered clients.
Reference: CWDP-305 Official Study Guide, Chapter on Designing for Specific Applications

Comprehensive and Detailed Explanation:
Per-user Pre-Shared Keys (PSKs) offer several advantages over a single PSK used across an entire Extended Service Set (ESS):
User-Based Access Control:Assigning unique PSKs to individual users allows for better tracking and control over network access.
Simplified Key Management:If a user's PSK is compromised or they leave the organization, only their key needs to be changed, not the entire network's.
Option C:Per-user PSKs are not a standard defined or certified by the Wi-Fi Alliance; they are an implementation choice.
Option D:Mutual authentication is a feature of WPA/WPA2-Enterprise using 802.1X, not of PSK-based systems.
Reference:CWDP-305 Study Guide, Chapter on WLAN Security - PSK Management Strategies.

The primary objective of the initial pre-deployment meeting is to communicate the design decisions to the deployment team, ensuring they understand the design documentation.This alignment is crucial for the successful implementation of the WLAN infrastructure as per the design specifications.
The CWDP-305 Official Study and Reference Guide highlights the importance of clear communication during the deployment phase.
Reference: CWDP-305 Official Study and Reference Guide, Chapter on Wireless Design Process