Step by Step Detailed Comprehensive Explanation with All CompTIA References:
* Analysis of the Problem:
* Degraded RAID performance and red light indicate a failed HDD in the array.
* Option Evaluation:
* A. HDD: Replacing the failed hard drive restores RAID performance. Correct.
* B. CPU: Not related to RAID performance. Incorrect.
* C. PSU: Power issues wouldn't cause RAID degradation. Incorrect.
* D. RAM: Unrelated to RAID functionality. Incorrect.
Reference: RAID troubleshooting is outlined in Domain 5.3.

The best way to meet the user's requirement is C. Connect everything to a compatible docking station.
A docking station is a device that allows a laptop to connect to multiple peripherals and accessories with a single connection. A docking station usually has ports for USB, HDMI, audio, Ethernet, and power, as well as slots for expansion cards. A docking station can enhance the functionality and convenience of a laptop by providing a desktop-like experience1. A compatible docking station is one that matches the laptop's model, brand, and connector type2.
A port replicator is a simpler device that only replicates the ports of the laptop, such as USB and HDMI, without providing additional features or power. A port replicator can also allow a laptop to connect to multiple peripherals and accessories with a single connection, but it does not offer the same benefits as a docking station1.
Directly connecting all accessories to the laptop would not meet the user's requirement, as it would be cumbersome and time-consuming to pack up and leave if needed. The user would have to disconnect and reconnect multiple cables every time they want to use or move the laptop. This option would also limit the number of accessories that can be connected, as the laptop may not have enough ports for all of them.
Providing the user with a second laptop would not meet the user's requirement, as it would be expensive and impractical. The user would have to transfer data and settings between the two laptops, and keep them both updated and secure. This option would also create confusion and redundancy, as the user would have two identical devices.
Providing the user with a USB hub would not meet the user's requirement, as it would only allow the user to connect more USB devices to the laptop. A USB hub is a device that splits one USB port into multiple ports, but it does not support other types of connections, such as HDMI or audio. A USB hub would also require an external power source or drain the laptop's battery faster. This option would not help the user connect the HDMI external monitor or the 3.5mm headset.

To configure the laptop to show both screens, the technician should adjust the monitor display settings. On Windows 10 or 11, the technician can select the Start menu, then open Settings, then select Display. The PC should automatically detect the monitors and show the desktop. If the monitors are not detected, the technician can select Multiple displays, then Detect. The technician can then use the dropdown list next to the image of the desktop to choose how the screen will project across the displays12345.

White lines running through text and graphics in printouts from an inkjet printer are commonly caused by clogged printheads. When the printhead nozzles are clogged, they cannot deliver ink properly to the paper, resulting in white lines where ink should have been deposited. Worn-out rollers, faulty ink cartridges, and poor-quality paper can cause other printing issues but are less likely to cause white lines in the printed output.
References:
* CompTIA A+ Core 1 Exam Objectives Section 3.7: Given a scenario, install and replace printer consumables.

If paper gets stuck at the last stage of printing, the rollers responsible for moving the paper through the printer are likely worn out or dirty.
* Why Not B (Tray assembly): The tray assembly manages paper loading, not feeding during the print process.
* Why Not C (Toner): Toner is unrelated to paper jams.
* Why Not D (Printhead): Printheads manage ink/toner distribution, not paper movement.
CompTIA A+ Exam Reference: Core 2 (220-1102), Section 4.6, printer troubleshooting.