When the Soviet Union Removed Its Troops from Afghanistan as Part

When the Soviet Union removed its troops from Afghanistan as part of Gorbechev's Perestroika policy,

A) the American-supported Mujahideen took temporary control before the country fell to the Taliban.
B) Iran tried to invade the mountainous state from the west, with no luck.
C) Pakistan was also willing to settle its dispute with the neighbor.
D) it met one of the demands Reagan had made for the resumption of disarmament talks.
E) it did so only because Soviet leaders realized that it would eventually gain control of Afghanistan another way, with American assistance.