Explanation:

- Option 1: Act of 1919

- The Government of India Act, 1919 introduced the idea of diarchy in the provincial government and expanded the participation of Indians in administration.

- This act also led to the creation of the 'Chamber of Princes' in 1921.

- Option 2: Act of 1793

- The Act of 1793, also known as the Charter Act, primarily renewed the charter of the British East India Company.

- It did not establish a Chamber of Princes.

- Option 3: Act of 1909

- Also known as the Morley-Minto Reforms, it introduced separate electorates for Muslims and expanded legislative councils.

- It didn't create the Chamber of Princes.

- Option 4: Charter Act of 1853

- This was primarily about the legislative and administrative changes within the East India Company.

- It wasn't related to the Chamber of Princes.