Refer to the exhibit.
CDP.png" alt="q68-CDP" />
Which configuration ensures that the Cisco Discovery Protocol packet update frequency sent from DSW1 to ALS1 is half of the default value?

A.	DSW1(config)#cdp timer 90
B.	DSW1(config-if)#cdp holdtime 60
C.	DSW1(config)#cdp timer 30
D.	DSW1(config)#cdp holdtime 90
E.	DSW1(config-if)#cdp holdtime 30
F.	DSW1(config-if)#cdp timer 60