If you want to launch Amazon Elastic Compute Cloud (EC2) Instances and assign each Instance a predetermined private IP address you should:

If you want to launch Amazon Elastic Compute Cloud (EC2) Instances and assign each Instance a predetermined private IP address you should:
A . Assign a group or sequential Elastic IP address to the instances
B . Launch the instances in a Placement Group
C . Launch the instances in the Amazon virtual Private Cloud (VPC).
D . Use standard EC2 instances since each instance gets a private Domain Name Service (DNS) already
E . Launch the Instance from a private Amazon Machine image (Mil)

Answer: C

Explanation:

http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-ip-addressing.html