Who among the following was an ex-army Brigadier and Director General of the Archaeological Survey of India in 1944 ?

R.E.M. Wheeler (Robert Eric Mortimer Wheeler) was a British archaeologist, a former army Brigadier, and became the Director General of the Archaeological Survey of India (ASI) in 1944.

He introduced more scientific and systematic excavation methods in Indian archaeology.

He excavated several important sites, including Harappa, and emphasized stratigraphy in excavation.

Other Options:
(A) John Marshall: DG of ASI before Wheeler (1902–1928), known for discovering Harappan Civilization.

(C) Alexander Cunningham: First DG of ASI (1871), called the "Father of Indian Archaeology".

(D) S.N. Roy: A scholar and official, but not an ex-army Brigadier or DG of ASI in 1944.