Final answer:
The GPS receiver that processes information from several satellites simultaneously is a Multi-channel receiver, which can track multiple satellites, providing a faster and more accurate position fix than single or dual-channel receivers.
Step-by-step explanation:
The type of GPS receiver that has at least four channels to process information from several satellites simultaneously is c) Multi-channel receiver. GPS receivers with multiple channels can track multiple satellites at one time. This allows them to receive signals from at least four satellites, which is necessary to accurately determine the receiver's three-dimensional position (latitude, longitude, and altitude). Single-channel receivers can only track one satellite at a time, and dual-channel receivers can track two, which can increase the time it takes to get a precise fix or degrade accuracy. Multi-channel receivers have the advantage of being able to lock on to several satellites almost instantly, providing a faster and more reliable positioning.