A motivational technique generally used to overcome monotony and job-related boredom is:

Comprehensive and Detailed In-Depth Explanation:

Job rotation involves periodically moving employees between different tasks, roles, or departments to increase engagement, reduce boredom, and enhance skill development.

Option A (Job specification) – Defines job responsibilities but does not address boredom.

Option B (Job objectives) – Focuses on performance goals rather than task variety.

Option D (Job description) – Simply documents job roles without changing daily tasks.

Thus, job rotation (Option C) is the most effective strategy for overcoming monotony and job-related boredom.