Figure shows three pulse train inputs to a 3-input OR gate. Assuming positive logic, the output pulse rate train in figure (b) would be

Figure shows three pulse train inputs to a 3-input OR gate. Assuming p

1.	Figure shows three pulse train inputs to a 3-input OR gate. Assuming positive logic, the output pulse rate train in figure (b) would be
A.	A
B.	B
C.	C
D.	D
Answer» D. D