Which of the following is the correct chronological sequence in which the hill stations of Shimla, Mount Abu and Darjeeling became part of the British Empire?

Shimla, Mount Abu, Darjeeling Shimla, Darjeeling, Mount Abu Mount Abu, Shimla, Darjeeling Darjeeling, Shimla, Mount Abu

Shimla, Mount Abu, Darjeeling

Simla (present-day Shimla) was founded during the course of the Gurkha War (1815-16); the Anglo-Maratha War of 1818 led to British interest in Mount Abu; and Darjeeling was wrested from the rulers of Sikkim in 1835. Hill stations became strategic places for billeting troops, guarding frontiers and launching campaigns against enemy rulers.