Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?

You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol.

Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?
A . Increase the hold queue on the tunnel interface of the spoke routers.
B . Increase the hold queue on the physical interface of the spoke routers.
C . Increase the hold queue on the physical interface of the hub router.
D . Increase the hold queue on the tunnel interface of the hub router.
E . Apply QoS for pak_priority class.

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Answer: D