The Expression the "Eastern Question" Refers To

The expression the "Eastern Question" refers to:

A) the question of who would benefit as the Ottoman empire lost its grip in southeastern Europe.
B) the problem of Jewish settlements in the Habsburg empire.
C) the ongoing conflict between Russia and China.
D) the relationship between Slavophiles and Russian Westernizers.
E) the deep suspicion of the French and the British of Russian political goals in the West.