Which command correctly configures standby tracking for group 1 using the default decrement priority value?

A.
standby 1 track 100

B.
standby 1 track 100 decrement 1

C.
standby 1 track 100 decrement 5

D.
standby 1 track 100 decrement 20

Explanation:
The default decrement value for HSRP standby tracking is 10. There is no need to explicitly state the value if the desired value is the default value.