While planning instructional system approach in language teaching, a teacher committed a mistake. Find out the mistake from the following.

Correct option is C

Answer: (c) Assigning Personnel roles.
Explanation:
The instructional system approach focuses on defining objectives, specifying materials and media, and specifying appropriate strategies. Assigning personnel roles is an administrative or managerial task, not a core component of instructional design. Including it as a step in planning the instructional system is a mistake.