The key to propagation delay in bipolar logic family is to prevent the transistors in a gate from ___________

The key to propagation delay in bipolar logic family is to prevent the

1.	The key to propagation delay in bipolar logic family is to prevent the transistors in a gate from ___________
A.	Fan-in
B.	Fan-out
C.	Saturation
D.	Cut-off
Answer» D. Cut-off