The correct answer is: B. passive tracking.
In passive tracking, the GPS receiver only receives signals from the GPS satellites. It does not transmit any signals back to the satellites. This is in contrast to active tracking, in which the GPS receiver both receives and transmits signals to the satellites.
Passive tracking is less accurate than active tracking, but it is also less expensive and requires less power. It is often used for applications where accuracy is not critical, such as tracking the movement of vehicles or people.
Active tracking is more accurate than passive tracking, but it is also more expensive and requires more power. It is often used for applications where accuracy is critical, such as navigation or surveying.
Assisted tracking is a hybrid of passive and active tracking. In assisted tracking, the GPS receiver uses information from other sources, such as a cellular network or a Wi-Fi network, to improve its accuracy. This makes assisted tracking more accurate than passive tracking, but less expensive and requires less power than active tracking.
Receiver tracking is a term used to describe the process of tracking the location of a GPS receiver. This can be done using either active or passive tracking.
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