Correct Option (B)
Jean-Baptiste Tavernier was a French gem merchant and traveler who undertook six voyages to India between 1640 and 1667. His primary interest lay in precious stones, and he provided elaborate and detailed descriptions of the diamond mines, particularly those in Golconda, and the diamond trade prevalent in India during the Mughal era. His well-known work, "Travels in India," serves as a significant historical source for understanding the economic aspects, trade routes, and mining operations of the 17th century.
Incorrect Options
Francois Bernier, a French physician and philosopher, resided in the Mughal court from 1656 to 1668. His writings, such as "Travels in the Mughal Empire," primarily focused on the Mughal administration, the condition of the peasantry, urban centers, and various industries, but not extensively on diamonds or diamond mines.
Jean de Thevenot, another French traveler of the 17th century, provided accounts of various aspects of Indian life, including indigo cultivation and trade. However, his discussions do not include elaborate details about diamonds or diamond mining.
Abbe Barthelemy Carre, a French priest and traveler, visited India in the 1670s. His observations and writings mainly concerned the port towns and the activities of the French East India Company, with no significant focus on diamond mining.