While researching a topic, a student has taken the following notes:

* NASA uses rovers, large remote vehicles with wheels, to explore the surface of Mars.
* NASA's rovers can't explore regions inaccessible to wheeled vehicles.
* Rovers are also heavy, making them difficult to land on the planet's surface.
* Microprobes, robotic probes that weigh as little as 50 milligrams, could be deployed virtually anywhere on the surface of Mars.
* Microprobes have been proposed as an alternative to rovers.

The student wants to explain an advantage of microprobes. Which choice most effectively uses relevant information from the notes to accomplish this goal?