2nd degree AV block type 1 - Mobitz 1 or _____ - ____ ____ so that P wave appears with no subsequent ____ that follows ? repeating pattern
a) Wenckebach, PR interval, QRS complex
b) Wenckebach, QRS complex, PR interval
c) Lown-Ganong-Levine, QRS complex, P wave
d) Lown-Ganong-Levine, PR interval, QRS complex