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？（）