Which configuration must the operator use to remedy this failure scenario?

A service provider engineer enabled the BGP next-hop tracking feature and also turned the OSPF to increase the network convergence in case of network failures.
However, the operator engineer notices that in case of PE failure, the network convergence is still slow.
Which configuration must the operator use to remedy this failure scenario?
A. router ospf 1 no default-information originate timer throttle lsa all 1 5 5000 timer throttle spf 1 5 5000
B. router bgp 65000 address-family ipv4 no bgp nexthop trigger enable bgp additional-paths install
!
address-family vpnv4 no bgp nexthop trigger enable bgp additional-paths install
C. router bgp 65000 address-family ipv4 bgp nexthop trigger delay 1
!
address-family vpnv4 bgp nexthop trigger delay 1 D. router ospf 1 default-information originate always metric-type 1 timer throttle lsa 1 5 5000 timer throttle spf 1 5 5000
D. ip prefix-list PREFIX_32 permit 0.0.0.0/0 ge 32
!
route-map ONLY_32 permit 10 match ip address prefix-list PREFIX_32 match source-protocol ospf
!
router bgp 65000 address-family vpnv4 bgp nexthop route-map ONLY_32

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