What is a characteristic of GPS satellites?

GPS satellites are designed to orbit the Earth at a specific distance, which is approximately 10,900 nautical miles from the Earth's surface. This altitude allows them to maintain a stable position relative to the Earth, ensuring that they provide continuous and accurate location data to GPS receivers. Their orbits are arranged in such a way that multiple satellites are always in view from any point on the Earth, making navigation possible anywhere on the planet. This characteristic is essential for the global positioning system's functionality, allowing users to determine their exact location at any moment.

The other options present different attributes that do not align with how GPS satellites are designed or operate. GPS satellites are not stationary but rather continually orbit the Earth. They aim to provide comprehensive coverage instead of limited access, and they operate in medium Earth orbit rather than a lower Earth orbit, which is characteristic of different types of satellites.