Final answer:
SAP Data Services is the ETL tool responsible for extracting, transforming, and loading data using the Data Services Designer.
Step-by-step explanation:
The component responsible for the extraction, transformation, and load (ETL) of data using Data Services Designer is the ETL tool itself, which in this context is likely referring to SAP Data Services. As an integral part of SAP Business Technology Platform, SAP Data Services allows users to integrate, transform, improve, and deliver trusted data to critical business processes. The ETL tool operates by extracting data from various sources, transforming the data according to business rules and needs, and then loading the transformed data into target systems for analysis, reporting, or further processing.