Arrange the following major developments in Harappan Archaeology in a chronological order:
A. B.B. Lal begins excavations at Kalibangan.
B. Report of Alexander Cunningham on Harappan Seal.
C. R.E.M. Wheeler excavates at Harappa.
D. S.R. Rao begins excavations at Lothal.
E. M.S. Vats begins excavations at Harappa.

Choose the correct answer from the options given below:
1. B, C, E, D, A
2. C, B, E, A, D
3. B, E, C, D, A
4. E, B, C, A, D

3

Years associated with the mentioned events:

1960- B.B. Lal begins excavations at Kalibangan.
1875- Report of Alexander Cunningham on Harappan Seal.
1946- R.E.M. Wheeler excavates at Harappa.
1955- S.R. Rao begins excavations at Lothal.
1921- M.S. Vats begins excavations at Harappa.