In 1851 Governor General Lord Dalhousie described the kingdom of Awadh as “a cherry that will drop into our mouth one day”. Five years later, in 1856, the kingdom was formally annexed to the British Empire. The conquest happened in stages. The Subsidiary Alliance had been imposed on Awadh in 1801. By the terms of this alliance the Nawab had to disband his military force, allow the British to position their troops within the kingdom, and act in accordance with the advice of the British Resident who was now to be attached to the court.

So, the correct option is [2].