What challenges did Iran face in in the 1800's? Why did Britain and Russia try to control?

The British cabinet decided on 2 November that after what had happened we ought to take a vigorous offensive. In a public speech at Guildhall in London on 9 November, the prime minister, H. H. Asquith, declared: It is the Ottoman government, and not we who have rung the death knell of Ottoman dominion not only in Europe but in Asia. The next month Britain severed the formal constitutional link between Egypt and the Ottoman Empire,

Explanation:

the answer is d. give brainliest if right.

ps is this 7th grade civics?

b.   jim crow laws were enacted in northern states.