Who was the director of the archaeological excavation that led to the discovery of Harappa and Mohenjodaro?

Who among the following was not associated with the excavation of Harappa and Mohenjodaro?

The excavation at Chanhudaro was directed by –

The Harappan city represented by the archaeological site of Lothal was situated on the river –

The first archaeologist who excavated Harappa, but could not recognize its significance, was :

From where the evidence of rock-cut architecture was found, with reference to Harappa civilization?