What function does AWS Glue serve in data handling?

AWS Glue serves as a serverless data integration service specifically designed to facilitate Extract, Transform, Load (ETL) processes. Its primary function is to allow users to discover, prepare, and combine data for analytics, machine learning, and application development.

By offering a serverless environment, AWS Glue eliminates the need for users to manage infrastructure, allowing them to focus on the data transformation processes. The service can automatically generate code to execute the ETL jobs based on data schemas, making it easier for organizations to rapidly process large volumes of data from various sources, such as databases and data lakes. Additionally, AWS Glue includes features like Glue Data Catalog, which provides a centralized repository and enables data discovery for users to easily find the relevant data they need.

In summary, the purpose of AWS Glue is to simplify and streamline the ETL process while providing a flexible and scalable solution for data handling, thereby making it the correct answer.