Which crop was unknown (unfamiliar) to the Harappan people?
Explanation
aphical location, excavator, or cultural practice referred to in the stem.
Option-wise analysis: Ragi is correct because it fulfils the precise historical condition asked. Rice is incorrect because it belongs to a different site, discovery, period, location, or cultural association. Cotton may be connected with ancient Indian history, but its defining evidence does not match this question. Barley is also incorrect because the site–feature, person–excavation, river–settlement, or chronology link is different.
For examination purposes, classify the question before selecting an answer. If it asks about a site, recall its location, river, excavator, and special discovery. If it concerns an artefact, distinguish the place where it was found from the material or interpretation attached to it. If it concerns dates, separate Early, Mature, and Late Harappan phases. Archaeological interpretations may change when new evidence appears, so use the standard association accepted in school texts and competitive examinations. Therefore option C, Ragi, matches the marked correct index and is the best-supported answer.Ragi (finger millet) is considered to be unknown or unfamiliar to Harappan people. The Harappans cultivated wheat, barley, cotton, peas, sesame, and mustard. Cotton was first cultivated by the Harappans, earning the name 'Sindon' in Greece.