Explanation:

2nd option is correct. The Durand Line is an international border between Pakistan and Afghanistan. It was established in 1896 between Sir Mortimer Durand, a British diplomat and civil servant of British India, and Abdur Rahman Khan, the Afghan Amir, to fix the limit of their respective spheres of influence and improve diplomatic relations and trade. Afghanistan was considered by the British as an independent princely state at the time, although the British controlled its foreign affairs and diplomatic relations.