AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(B) It brought all stages of cloth production under one roof and one management.
The passage directly states: "Within the mill all the processes were brought together under one roof and management." This allowed supervision of quality and regulation of labour. The Spinning Jenny was a separate invention; Arkwright's significance was the factory system, not any single machine. Options C and D are factually incorrect as per the text.
Source: The Coming Up of the Factory, Chapter 4