The correct answer is D) they are doing dangerous work.
The statement that best summarizes what the doctor is saying about child factory workers is "they are doing dangerous work."
We are talking about a testimony expressed by a doctor to the British Parliament in 1819, regarding the working conditions in the factories.
What the doctor is saying is that when worked in the infirmary he saw many accidents and attended many patients that suffered while doing their work. He described how children hurt and broke thair hands when getting caught in the machinery; some muscles stripped down to the bone. The doctor added that children lost fingers working with the machines.
