Explanation:

- The Archaeological Survey of India (ASI) was established to conduct surveys of historical sites and remains.

- Option 1: John Marshall - He was the Director General of ASI from 1902 to 1928 but not the first.

- Option 2: Alexander Cunningham - He was the first Director General, appointed in 1861, and is often called the "Father of Indian Archaeology."

- Option 3: Mortimer Wheeler - Known for his work with ASI, but much later in the 20th century.

- Option 4: Francis Buchanan - Contributed to early surveys and explorations but was not the Director General of ASI.