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.

Based on the information provided, the best supported argument by this expert would be option D) the primary source document supports the argument that the Yuan dynasty was tolerant of different religious practices.