The correct answer is: d) 19th century.
British exploration and mapping of Arunachal Pradesh intensified in the 19th century. The first British expedition to Arunachal Pradesh was led by Captain Frederick Young in 1839. Young’s expedition was followed by a number of other British expeditions, including the expedition led by Colonel James Outram in 1849. These expeditions were primarily motivated by the British desire to expand their territory and to control the trade routes that passed through Arunachal Pradesh.
The British were also interested in the natural resources of Arunachal Pradesh, such as its timber and minerals. In 1853, the British established a permanent post in Arunachal Pradesh at Sadiya. This post was later renamed Dibrugarh. The British also established a number of other posts in Arunachal Pradesh, including the post at Margherita in 1874.
The British presence in Arunachal Pradesh was met with resistance from the local people. The local people were not happy with the British encroachment on their land and their interference in their affairs. The British were also accused of exploiting the local people and their resources.
The British rule in Arunachal Pradesh came to an end in 1947, when India gained independence from British rule. Arunachal Pradesh became a part of India in 1949.
Here is a brief explanation of each option:
- a) 16th century: The British did not have any significant presence in Arunachal Pradesh in the 16th century.
- b) 17th century: The British did not have any significant presence in Arunachal Pradesh in the 17th century.
- c) 18th century: The British did not have any significant presence in Arunachal Pradesh in the 18th century.
- d) 19th century: The British exploration and mapping of Arunachal Pradesh intensified in the 19th century.