Which problem can increase due to poor ergonomic arrangement?

Correct answer: Body pain

The direct answer is D, Body pain. Ergonomics means arranging tools, furniture, posture, and work methods so that they suit the human body and reduce unnecessary strain. A poor ergonomic arrangement may place the neck, back, shoulders, wrists, or legs in awkward positions. If this continues, muscles and joints may become tired or painful. Option A, more comfort, is generally a benefit of good ergonomics, not poor arrangement. Option B, better safety, is also a benefit of proper design and safe working conditions, not the expected result of a bad setup. Option C, less fatigue, is wrong because poor posture and unsuitable equipment usually increase fatigue. Option D is correct because physical strain can cause or increase body pain. Poor ergonomics may also reduce efficiency, but the clearest listed problem is pain. Memory cue: good ergonomics supports the body; bad ergonomics strains the body.