You set up a web application development environment by using a third party configuration management tool to create a Docker container that is run on local developer machines.

Answer options:

A.Write a script using the AWS SDK or CLI to deploy the application code from version control to the local development environments staging and production using AWS OpsWorks.
B.Define an AWS CloudFormation template to place your infrastructure into version control and use the same template to deploy the Docker container into Elastic Beanstalk for staging and production.
C.Because the application is inside a Docker container, there are no infrastructure differences to be taken into account when moving from the local development environments to AWS for staging and production.
D.Define an AWS CloudFormation template for each stage of the application deployment lifecycle –development, staging and production –and have tagging in each template to define the environment.

Answer - B
Elastic Beanstalk supports the deployment of web applications from Docker containers. With Docker containers, you can define your own runtime environment. You can choose your own platform, programming language, and any application dependencies (such as package managers or tools), that aren`t supported by other platforms. Docker containers are self-contained and include all the configuration information and software your web application requires to run.
By using Docker with Elastic Beanstalk, you have an infrastructure that automatically handles the details of capacity provisioning, load balancing, scaling, and application health monitoring. 
This seems to be more appropriate than Option
D.https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker.html
For more information on Cloudformation best practises, please visit the link:
http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/best-practices.html