Correct Answer: (d) V.A. Smith
Solution:In 1921, Daya Ram Sahni excavated Harappa. From 1926-27 to 1933-34, M.S. Vats was associated with the excavation of Harappa. Mohenjodaro excavation was done in 1922 by Rakhal Das Banerjee. In addition to him, some other scholars like K.N. Dixit, Ernest Mackay, Aurel Stein, A. ghosh, J.P. Joshi also contributed in the discovery of this civilization.