Need i will give brainliest answer
how were the european calendars and meso-american calendars similar?

a separate calendar was kept for planning festivals and rituals.
they contained days for religious ceremonies.
they both tracked the lunar year closely.
they both kept a calendar only for historical events.

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

the answer is prolly b