The correct option is (b).
Explanation
Project Loon was a research and development project initiated by X (formerly Google X), a subsidiary of Alphabet Inc., aimed at providing Internet access to rural and remote areas.
Detailed Analysis:
- The project utilized high-altitude balloons placed in the stratosphere at an altitude of approximately 18 km to 25 km to create an aerial wireless network.
- These balloons functioned as floating cell towers, transmitting internet signals to ground stations and personal devices using LTE technology.
- The primary objective was to extend internet connectivity to underserved populations where building ground infrastructure was difficult or economically unviable.
- Therefore, the project is directly related to wireless communication technology.
Key Takeaway: Project Loon utilized stratospheric balloons to provide wireless internet connectivity (LTE) to remote and rural regions.