Final answer:
For Tina, a graphic designer needing to connect multiple large screens, a desktop computer is the most suitable choice due to its powerful processing capabilities, enhanced display support, and superior expandability.
Step-by-step explanation:
The best option for Tina, a graphic designer who needs to connect multiple large screens for her work would be (A) Desktop computer. Desktop computers provide superior processing power, greater storage, and enhanced display capabilities compared to other portable devices. They also have the ability to support multiple monitors easily through the use of dedicated graphics cards with multiple outputs. A desktop computer's expandability allows for more RAM, better graphics cards, and additional storage, which can substantially benefit graphic design work. Furthermore, the large form factor of a desktop means better heat dissipation, which is crucial when running heavy design software for extended periods.