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Laying Mohenjodaro's foundations alone is estimated to have needed how many person-days?

AFour hundred
BFour million
CFour thousand
DForty million
Answer & Solution
Correct answer: B. Four million
1. One labourer moved a cubic metre of earth a day. 2. It took four million person-days. 3. This shows large-scale labour mobilisation. _Source: NCERT Class 12 Themes in Indian History I, Theme 1, Bricks, Beads and Bones._
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