You have created a number of VPC’s in a region. You are trying to create a 6th VPC, but are not able to do so. What could be the underlying issue?

Answer options:

A.There is a limit of 5 VPC’s per region. Submit a request to get the limit increased.
B.The region does no support creating of VPC’s
C.There is a already a VPC with the same name already defined
D.There is already a VPC present with the same CIDR block range

Answer - A
The AWS documentation specifies this limitation
For more information on the VPC limits , please visit the below URL:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Appendix_Limits.html