Answer:
3) Italian traders brought the monument with them and traded it for silk and tea.
Step-by-step explanation:
Option 1 is not correct as there is no chance that they could present someone who is outside Europe for Pope at the time.
Option 2 is probably correct as it known that Christianity was already present in this region from the 7th Century. Therefore it is possible that it was created in China.
Option 3 is not correct as it rather unlikely that someone would exchange these products for monument.
Option 4 as Marco Polo was a merchant who knew that this could offend Mongolian ruler.