AWS Certified Solutions Architect - Professional (#106)

An organization has setup RDS with VPC. The organization wants RDS to be accessible from the internet. Which of the below mentioned configurations is not required in this scenario?

The organization must enable the parameter in the console which makes the RDS instance publicly accessible.
The organization must allow access from the internet in the RDS VPC security group,
The organization must setup RDS with the subnet group which has an external IP.
The organization must enable the VPC attributes DNS hostnames and DNS resolution.