The correct answer is A) the Mongol's ensured that trade routes in both countries were safe and secured.
Mongol Empire affected Russia and Persia in that the Mongol's ensured that trade routes in both countries were safe and secured.
The army of Genghis Khan was one of the most powerful armies at the end of the 12th century. In that time, very few nations could oppose them. The Mongol army secured the Silk Routes from Chine to Europe to allow trade in a safe way. There is a name for this period of Mongolic presence in the region. It was called the Pax Mongolica. So it is true that the Mongol Empire affected Russia and Persia in that the Mongol's ensured that trade routes in both countries were safe and secured.