Why is the jute industry in Bihar heavily concentrated in the northeastern districts of Purnea, Katihar, Araria, and Kishanganj, rather than the western districts?

Options:

• A: The western districts lack access to the Ganga river for retting.
• B: The northeastern districts have higher humidity, higher rainfall, and acidic to neutral alluvial soils suitable for jute.
• C: The western districts have a higher density of railway networks which discourages agriculture.
• D: The northeastern districts have cheaper labor imported from Nepal.

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