An entrepreneur working continuously without rest began making poor decisions. Which conclusion is correct?

Correct answer: Health and balance are necessary for effective work

The direct answer is D: Health and balance are necessary for effective work. Continuous work without rest can create physical and mental fatigue. The chain is: no rest causes tiredness; tiredness reduces attention and patience; reduced attention increases mistakes and weak decisions; therefore more hours may produce less useful work. Option D is correct because sleep, breaks, health and balanced routines support clear thinking and sustained performance. Option A is wrong because exhaustion does not always bring success and can harm performance. Option B is wrong because rest is not against entrepreneurship; sensible rest helps an entrepreneur continue effectively. Option C is wrong because long hours show time spent, not productivity or results. Option D does not mean avoiding effort; it means combining effort with recovery and healthy habits. A tired person should pause, sleep adequately and reorganise work. Memory cue: productivity means useful results, not merely being busy for many hours.