Which AWS service should the company use?

Explanations:

AWS CodeBuild is a fully managed build service that automates the building and testing of code, but it does not provide an integrated development environment (IDE) for development teams.

AWS Cloud9 is a cloud-based integrated development environment (IDE) that allows developers to write, run, and debug their code with just a browser. It provides a rich set of features for collaboration, making it ideal for development teams.

AWS OpsWorks is a configuration management service that helps in managing applications and servers, but it does not offer an IDE for coding and development purposes.

AWS Cloud Development Kit (AWS CDK) is an open-source software development framework that enables developers to define cloud infrastructure in code but does not provide an integrated development environment for coding.