The correct answer is <span>that they had to grant leeway for the adoption of some domestic reforms inside east european countries
Although there were numerous protests, riots, coups, and similar things, they were mostly stopped by the Soviet Union using the power of the military. This victory was difficult however and they understood that without giving satellite states some leeway that they would face numerous other problems in state governing.</span>
The reason that gave birth to similarities between the Almoravid and the Almohad empires which were Muslim dynasties was the pilgrimage that they undertook. This is because as a result of this pilgrimage, they brought back foreign Arabic culture and influences to their respective empires. Because the origin of these cultures was the same, it lent similarity to the two empires.
The answers is the last one... hope this helps :)