What should be considered while deciding work height in ergonomics?

Correct answer: Type of task and worker's body build

Ergonomics designs work conditions so that the task fits the worker and can be done safely, comfortably, and efficiently. Work height should not be selected from an unrelated feature such as a wall, floor colour, or office name. The important considerations are the nature of the task and the worker’s body build, including reach, posture, and body dimensions.

The correct choice is C because different activities need different heights: writing, standing assembly, precision work, and lifting do not place the same demands on the body. A height suitable for one person or task may cause bending, raised shoulders, or excessive reaching for another. Thus both task requirements and worker characteristics must be considered together when setting the work surface.