which order must be performed, before you can change the mode of a standard cluster to Flex?

Which tasks and in which order must be performed, before you can change the mode of a standard
cluster to Flex?

A.
1. The node role must be set for each node in the cluster.
You must ensure that the GNS is configured with a fixed VIP.
Flex ASM must be enabled for the cluster.
Clusterware must be started on each node.

B.
1. Clusterware must be stopped on each node.
You must set the Flex ASM cardinality.
Flex ASM must be enabled for the cluster.
Clusterware must be started on each node.

C.
1. You must ensure that the GNS is configured with a fixed VIP. 2- Flex ASM must be enabled for
the cluster.
Clusterware must be stopped on each node.
Clusterware must be started on each node.

D.
1. Clusterware must be stopped on each node.
New Application VIPs must be created.
You must ensure that the GNS is configured with a fixed VIP.
Clusterware must be started on each node.