Assume two routers on the same subnet, R1 and R2, both configured for HSRP. R1 has a priority of 120. Which of the following HSRP interface configurations will always result in the R2 becoming the primary?

A.
standby 1 priority 110

B.
standby 1 priority 120

C.
standby 1 priority 130

D.
standby 1 priority 110 preempt

E.
standby 1 priority 120 preempt

F.
standby 1 priority 130 preempt