Legacy Contact is a new feature introduced by Apple in iOS 15.2, iPadOS 15.2, and macOS 12.1 that allows users to designate up to five people who can access their Apple account and data after they pass away. Legacy Contacts need to have the unique access key that the user created when they added them as a Legacy Contact, and a copy of the user's death certificate, to request access to the user's account. Legacy Contacts can access data stored in iCloud, such as photos and documents, but not services that require subscriptions, such as Apple Music or Apple TV+. The other options are not valid services offered by Apple. References: How to request access to a deceased family member's Apple account, How to set up Apple account access so people can get in after you die

Shareplay is the feature that allows you to share your screen in Facetime. It is a new feature introduced in iOS
15 and macOS Monterey that lets you watch, listen, and play together with your friends and family over FaceTime. You can share your screen to show apps, webpages, photos, and more, while seeing and hearing the reactions of others on the call. You can also stream online content from supported apps, such as Apple TV, Disney+, and Spotify, and control the playback and volume for everyone. Shareplay works across iPhone, iPad, Mac, and Apple TV, and you can join or leave the session at any time. To use Shareplay, you need to have a device that meets the minimum system requirements, an Apple ID, and a Wi-Fi or cellular connection. References: SharePlay - Apple, Share your screen in FaceTime on your iPhone or iPad - Apple Support

A system extension alert requires user approval inSystem Settings > Privacy & Security. After installation, macOS prompts to allow the extension; selecting "Allow" (and sometimes restarting) enables it if signed by the developer.
* Option A: Safe Mode disables extensions; Control Center doesn't manage them.
* Option B: System Information doesn't notarize extensions.
* Option C: Migration Assistant isn't for updates.
* Option D: Correct per macOS security policy.References: Apple Support - "If a system extension won't load" (support.apple.com/HT210999).

* B:AirDrop works between different accounts if enabled.
* C:AirPlay to Mac functions without account matching.
* Option A: Handoff requires same account.
* Option D: Sidecar needs same account.
* Option E: Auto Unlock requires same account.References: Apple Support - "Continuity requirements" (support.apple.com/HT204681).

HoldingOptionand clicking the Wi-Fi menu bar icon reveals advanced options, including "Open Wireless Diagnostics," which provides detailed network info.
* Option B: Regular click shows basic options.
* Option C: Right-click doesn't target SSID for diagnostics.
* Option D: Command key doesn't trigger this.
* Option A: Correct-standard method.References: Apple Support - "Use Wireless Diagnostics" (support.
apple.com/HT202663).