Mongol Rule in Russia Ended in a Confrontation in 1480

Mongol rule in Russia ended in a confrontation in 1480 between Ivan's armies and the Mongols. What happened during that confrontation?

A) There was some confusion, and both sides withdrew without actually doing battle.
B) Ivan's army defeated the Mongols in the midst of the frozen river.
C) Both sides fought at the ice river banks for thirteen days until the Mongols finally retreated.
D) The Mongols defeated the Russians but decided that occupation of Russia was too costly.