In the event of the re-use of Selective Availability, how does this affect, if at all, the navigation accuracy of the NAVSTAR/GPS satellite navigation system ?

A: It has no influence because, by selecting of the most suitable signals, the computing process in the receiver is quicker
B: It increases because only signals from satellites in the most suitable geometric constellation are selected by the receiver
C: It degrades position accuracy by manipulating satellite signals
D: It degrades accuracy by reducing the number of available satellites









Answer: C