In the Rivalry Between Great Britain and Russia in Asia

In the rivalry between Great Britain and Russia in Asia

A) Britain was concerned about Russian expansion southward toward India.
B) Russia borrowed money to lend funds to Persia for railroad construction.
C) alarmed by German expansionism elsewhere, Britain and Russia came to an understanding about Afghanistan, which separated Russian controlled Central Asia from British controlled India.
D) Britain and Russia agreed on spheres of influence in Persia.
E) all of the above