Answer :
Britain and Russia managed to peacefully share control of Persia by "d. each taking charge of their own part of Persia," although this was not always a smooth relationship.
Answer: d. each taking charge of their own part of Persia.
The Anglo-Russian Convention of 1907 established the boundaries that identified respective control in Persia, recognized that Britain had influence over Afghanistan and argued that neither country would intervene in Tibet.
The agreement divided Iran into three separate regions. Northern Iran was an exclusive sphere of influence for Russian interests. Southeastern Iran, which bordered British India, was recognized as an exclusive sphere for Britain. The area separating these two regions was designated a neutral zone.