A User Has Created a Subnet in VPC and Launched

Multiple Choice

A user has created a subnet in VPC and launched an EC2 instance within it. The user has not selected the option to assign the IP address while launching the instance. Which of the below mentioned statements is true with respect to this scenario?

A) The instance will always have a public DNS attached to the instance by default
B) The user can directly attach an elastic IP to the instance
C) The instance will never launch if the public IP is not assigned
D) The user would need to create an Internet gateway and then attach an elastic IP to the instance to connect from internet