which design mechanism will stabilize the network and avoid constant reconvergences?

There is an MPLS-enabled link constantly flapping on an MPLS VPN network. Given that the
network runs OSPF as the IGP protocol, which design mechanism will stabilize the network and

avoid constant reconvergences?

A.
BFD

B.
IP Event Dampening

C.
OSPF fast hellos

D.
partial SPF