Your R&D team is doing some research on how to use Elastic Beanstalk for a legacy product. The legacy product is using Java application and also Nginx. Your AWS solution architect suggests using Multidocker environment. How should you implement that in the Elastic Beanstalk?

Answer options:

A.Use two dockerfiles for the multidocker environment. One for Java and one for Nginx.
B.Use dockerrun.aws.json v1 for the multidocker environment. This file describes the containers to deploy to each container instance.
C.Use dockerrun.aws.json v2 for the multidocker environment. This file describes the containers to deploy to each container instance.
D.Use .ebextension config files to describe the multidocker environment.

Option C is Correct:
A Dockerrun.aws.json file is an Elastic Beanstalk–specific JSON file that describes how to deploy a set of Docker containers as an Elastic Beanstalk application. You can use a Dockerrun.aws.json file for a multicontainer Docker environment. AWSEBDockerrunVerion is 2 for the multicontainer Docker environments.
For more information, refer to
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker_v2config.html
Option A is incorrect because dockerfile can be used only for a single docker environment.
Option B is incorrect: because V2 should be used for multi docker environment.
Option D is incorrect: because for docker environment, Dockerrun.aws.json should be used rather than .ebextension config files.