When can an incident wave not distinguish between the termination and an infinite continuation of line?

When line is terminated by its surge impedance

When line is terminated by its characteristic impedance

When line is terminated by its surge impedance

When line is terminated by its characteristic and surge impedance

When can an incident wave not distinguish between the termination and

1.	When can an incident wave not distinguish between the termination and an infinite continuation of line?
A.	When line is terminated by its characteristic impedance
B.	When line is terminated by its surge impedance
C.	When line is open
D.	When line is terminated by its characteristic and surge impedance
Answer» B. When line is terminated by its surge impedance