Arrange the following events in a chronological order:

(A) John Marshall and Alfred Foucher published The Monuments of Sanchi
(B) 'Sanchi' was declared a World Heritage Site
(C) Alexander Cunningham explores the 'stupa' at Sarnath
(D) John Marshall publishes the Conservation Manual

Choose the correct answer from the options given below:

(C), (A), (D), (B)

The correct answer is Option (4) → (C), (A), (D), (B)

(C) Alexander Cunningham explores the 'stupa' at Sarnath : 1834
(A) John Marshall and Alfred Foucher published The Monuments of Sanchi : 1914
(D) John Marshall publishes the Conservation Manual : 1923
(B) 'Sanchi' was declared a World Heritage Site : 1989