What statement best describes mobile technology?

• A. Allows devices to communicate with each other only within a fixed network.
• B. Requires extensive wired infrastructure.
• C. Is limited to voice calls.
• D. Allows devices to communicate with each other wherever they are located.

Answer: (D)

Mobile technology hinges on wireless communication that works regardless of location. It uses radio links—cellular networks, Wi‑Fi, and other wireless connections—so devices can send data, make calls, or run apps wherever you are. The statement that best fits this idea is the one that says devices can communicate with each other wherever they are located, capturing the emphasis on location independence and wireless access.

The other ideas imply constraints that aren’t inherent to mobile tech: relying on a fixed network, needing extensive wired infrastructure, or being limited to voice calls. In reality, mobile technology enables much more than voice, including messaging, data access, and app use, all without being tied to wires.