An application has been built with the appropriate AWS SDK. This application interacts with the S3 service in AWS. This application is going to be deployed in a private subnet. Which of the following should be done to ensure that the application can successfully interact with the S3 service

Answer options:

A.Make the subnet as a public subnet
B.Attach an Internet gateway to the VPC
C.Create a VPC S3 endpoint
D.Attach a Virtual Private gateway to the VPC

Answer - C
One can use the S3 VPC endpoint
A VPC endpoint enables you to privately connect your VPC to an AWS service without requiring an internet gateway, NAT device, VPN connection, or AWS Direct Connect connection. Instances in your VPC do not require public IP addresses to communicate with resources in other services. Traffic between your VPC and the AWS service does not leave the Amazon network.
For more information on VPC endpoints, please visit the below link:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-endpoints.html