A router is a network device that connects multiple networks together and directs data packets to their intended destinations. This includes directing packets to networks outside of the local area network (LAN).
Routers use routing tables to determine the best path for data packets to travel.
Hubs and switches operate within a single LAN and are not capable of routing packets to external networks.
Bridges can connect two LANs together, but they do not have the intelligence to route packets to external networks.
Therefore, only routers are capable of directing packets to networks outside of the LAN.
References:
CompTIA A+ Certification Core 1 220-1101 Study Guide, Chapter 4: Networking, Section 4.1 Networking Fundamentals

Explanation
The correct answer is A. OLED.
OLED stands for Organic Light-emitting Diode, and it is one of the three display types available for laptops, along with TN (Twisted Nematic) and IPS (In-Plane Switching) panels1. OLED displays use organic compounds that emit light when an electric current is applied, unlike LCD displays that use a backlight to illuminate the pixels. OLED displays have several advantages over LCD displays, such as higher contrast, wider viewing angles, faster response times, and lower power consumption2. However, OLED displays are also more expensive, less common, and more prone to burn-in than LCD displays2.
CRT (Cathode Ray Tube), DLP (Digital Light Processing), and Plasma are not display types for laptops. CRT is an old technology that uses a vacuum tube to project an image on a phosphor screen. CRT monitors are bulky, heavy, and consume a lot of power3. DLP is a technology that uses a digital micromirror device and a light source to project an image on a screen or a wall. DLP is mainly used for projectors, not laptops4. Plasma is a technology that uses gas-filled cells that emit light when an electric current is applied. Plasma displays are mainly used for large-screen TVs, not laptops.
References:
1: Laptop Display 101: Display Types (TN, IPS, or OLED)
2: OLED vs LCD: which screen tech should you choose for your next laptop? | TechRadar
3: What is a CRT Monitor? - Definition from Techopedia
4: What is DLP (Digital Light Processing)? - Definition from WhatIs.com What is plasma display? - Definition from WhatIs.com

A video production workstation that will consist of two high-end GPUs will require a lot of power and a modular power supply. A modular power supply allows the technician to connect only the cables that are needed for the components, which reduces clutter and improves airflow. A 1,200W power supply should be enough to power the two GPUs and other components, but the exact wattage depends on the specifications of the GPUs and other components. A 400W external power supply is not enough to power the workstation and may not be compatible with the ATX case. Two 600W redundant power supplies are unnecessary and may not fit in the ATX case. A 1,500W uninterruptible power supply (UPS) is a device that provides backup power in case of a power outage, but it is not a replacement for a power supply unit (PSU). Reference: https://www.comptia.org/blog/what-is-a-power-supply-unit

Liquid cooling is a method of cooling the CPU by circulating a liquid through a closed loop that absorbs heat from the CPU and transfers it to a radiator. Liquid cooling is more effective and quieter than air cooling, which uses a fan and a heat sink. However, liquid cooling is also more expensive and complex to install.
Upgrading the thermal paste, using a copper heat sink, or upgrading the CPU fan are ways to improve air cooling, but they will not lower the CPU temperature as much as liquid cooling. References: https://www.
comptia.org/certifications/a#examdetails https://www.comptia.org/blog/what-is-liquid-cooling