If router J is on the optimal path from router I to router K, then the optimal path from J to K also falls along the same route is known as ………………..

If router J is on the optimal path from router I to router K, then the

1.	If router J is on the optimal path from router I to router K, then the optimal path from J to K also falls along the same route is known as ………………..
A.	routing principle
B.	optimality principle
C.	sink tree principle
Answer» C. sink tree principle