Head smut of jowar is caused by: ((MCAER 2014))

✅Explanation: A DBMS is a software system designed to store, manage, and retrieve data efficiently. It provides tools for creating, updating, querying, and reporting on databases.

📌Other Options Explanations:
-B. An operating system manages the hardware and software resources of a computer.
-C. Application software is used for specific tasks, such as word processing or spreadsheets.
-D. Programming languages are used to create software applications.