Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. They have questions about how these
two devices will perform in the event of a device failure.

Refer to the exhibit. If router R1 interface Etherne0/0 goes down and recovers, which of the statement regarding HSRP priority is true?

A.
The interface will have the priority decremented by 40 for HSRP group 1.

B.
The interface will have the priority decremented by 60 for HSRP group 1

C.
The interface will have its current priority incremented by 40 for HSRP group 1

D.
The interface will have its current priority incremented by 60 for HSRP group 1

E.
The interface will default to the a priority of 100 for HSRP group 1

Explanation:
Here is the HSRP configuration seen on R1:

Here, when the Ethernet 0/0 interface goes down, the standby 1 track decrement command will lower the priority from 130 to 90. However, when it comes back up,
it will then increment it by 40 back to 130 for HSRP group 1.