When the Loader of MRS creates a job, what is the role of the connector?

When the Loader of MRS creates a job, what is the role of the connector?
A . Configure the connection mode of the job and the external data source
B . Configure the connection mode the job and the internal data source
C . Provide optimized parameters to improve the performance of data import and export
D . Confirm that there are conversion steps

Answer: A