Can someone please help me?--


Which group invaded and conquered Russia in the early thirteenth century?

AMongols who leveled cities, looted treasures, and massacred entire populations

BMuslim armies who introduced Islam and imported Middle Eastern art, science, and architecture

CChinese tribes who massacred entire populations, introduced serfdom, and collected enormous taxes

DByzantines who gained trust by ruling fairly and using native Russians in the government

Thanks for the help in advanced C;