_ _ _ _ _ _ _ is a standard for short-range radio communications, originallydeveloped as a cable replacement to connect portable devices

_ _ _ _ _ _ _ is a standard for short-range radio communications, orig

1.	_ _ _ _ _ _ _ is a standard for short-range radio communications, originallydeveloped as a cable replacement to connect portable devices
A.	Radio beacon
B.	Bluetooth
C.	GPS
D.	All the above
Answer» C. GPS