The level that treats different types of traffics in different ways, giving certain traffic streams higher priority than other streams and with best efforts, but no guarantees are made :

The level that treats different types of traffics in different ways, g

1.	The level that treats different types of traffics in different ways, giving certain traffic streams higher priority than other streams and with best efforts, but no guarantees are made :
A.	Best effort service
B.	Soft QoS
C.	Worst effort service
D.	Hard QoS
Answer» C. Worst effort service