Which of the following would a technician MOST likely upgrade on a laptop?

Laptop video cards are almost always soldered to the motherboard or use proprietary MXM modules that are not user-replaceable on consumer laptops.

Most laptops have RAM slots that are accessible via a panel on the bottom of the chassis, making RAM a standard and straightforward upgrade. Upgrading RAM improves multitasking and overall performance without requiring specialized tools or voiding warranties on most systems.

Wireless antennas are embedded in the laptop lid and connected via thin coaxial cables, making them impractical to upgrade and rarely a performance bottleneck.

Replacing an LCD screen is a complex repair involving disassembly of the display assembly and is not considered a routine upgrade.