this is an expert writted by the italian merchant marco polo during the thirteenth historical arguments is best supported by this expert?
a ) the secondary source document supports the historical narrative that the mongols persecuted idolators
b ) the primary source document supports the historical narrative that the mongols gave preferential treatment to certain religions.
c ) the primary source document supports the historical narrative that the mongols gave the best jobs to mongols over the ethnic han population.
d ) the primary source document supports the argument that the yuan dynasty tolerant of different religious practices.