Explanation:

Let's match each date with the correct event:

- A. July 22, 1947 – The Constituent Assembly adopted the *National Flag* of India.

- B. January 24, 1950 – The Constituent Assembly adopted the *National Song* ("Vande Mataram").

- C. January 26, 1950 – The Government adopted the *National Emblem* (the Lion Capital of Ashoka).

- D. March 22, 1957 – The Government adopted the *National Calendar* (Saka Calendar).

Matching to the codes:

- A: 4 (Flag)

- B: 1 (Song)

- C: 2 (Emblem)

- D: 3 (Calendar)

So the correct code is: 4 1 2 3

Let's check your answer:

Explanation of Statements and Options:

- *Option 1 (4 1 2 3)* – Correctly matches all dates with the respective events.

- *Option 2 (3 1 2 4)* – Incorrectly assigns the National Calendar to July 22, 1947, which is wrong.

- *Option 3 (4 2 1 3)* – Switches the National Song and National Emblem, which is not correct.

- *Option 4 (2 1 3 4)* – Puts National Emblem for July 22, which is incorrect.

Summary:

- July 22, 1947: National Flag adopted

- January 24, 1950: National Song adopted

- January 26, 1950: National Emblem adopted

- March 22, 1957: National Calendar adopted

Correct option: 4 1 2 3