In which of the following years, the North-Western provinces was established?

The North-Western Provinces was an administrative region in British India. The North-Western Provinces were established in 1836, through merging the administrative divisions of the Ceded and Conquered Provinces. In 1858, the nawab-ruled kingdom of Oudh was annexed and merged with the North-Western Provinces to form the renamed North-Western Provinces and Oudh. In 1902, this province was reorganized to form the United Provinces of Agra and Oudh. Allahabad served as its capital from 1858, when it also became the capital of India for a day.