A customer has a resource group rg1 configured on a two node cluster with the following policies：The customer has observed the following scenarios as nodes join the cluster during cluster start up.
Scenario 1
Node1 joins cluster as first node - rg1 is acquired by Node1 Node2 joins cluster as second node - rg1 ismoved from Node1 to Node2
Scenario 2
Node2 joins cluster as first node - rg1 is acquired by Node2 Node1 joins cluster as second node - rg1 remainson Node2
Which of the following is the reason for this behavior？（）

A.rg1 is configured with a delayed fallback timer
B.Settling time policy has not been configured for rg1
C.Node1 does not have sufficient resources to support rg1
D.Node2 is the first in the ’Default Node Priority’ list for resource group rg1