What does a SART signal sound or look like?（）

A.It transmits "SOS" and the vessel's name and position in slow speed Morse Code

B.It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's position

C.It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's position

D.None of the above