The correct answer is C. DSS.
A decision support system (DSS) is an information system that supports business or organizational decision-making activities. DSSs serve the needs of an organization by providing the information necessary to make decisions and by helping decision-makers analyze data.
A database management system (DBMS) is a computer program that allows users to create and manage databases. DBMSs are used to store and organize data in a way that makes it easy to retrieve and analyze.
A management information system (MIS) is a computer-based information system that collects, stores, and processes data and then provides reports to managers. MISs are used to help managers make decisions about how to run their businesses.
A database administrator (DBA) is a person who is responsible for the design, implementation, and maintenance of a database. DBAs are responsible for ensuring that databases are secure, reliable, and efficient.
E is not the correct answer because it is not an information system.