With reference to the Indian History, Alexander Rea, . H. Longhurst, Robert Sewell, James Burgess and Walter Elliot were associated with

1. A

   archaeological excavations

   Archaeological excavations. Rea, Longhurst, Sewell, Burgess, Elliot — ASI / South Indian archaeology and epigraphy.

2. B

   establishment of English Press in Colonial India

   English press. Different names (Hicky, Serampore).

3. C

   establishment of Churches in Princely States

   Churches in princely states. Unrelated.

4. D

   construction of railways in Colonial India

   Colonial railways. Unrelated.

Summary. Official key is (a). Alexander Rea, A.H. Longhurst, Robert Sewell, James Burgess and Walter Elliot are names from the Archaeological Survey and from early documentation of South Indian monuments and inscriptions — excavation and survey, not press, churches or railways.