Is there’s supposed to be a photo?
a legally recognized subject or national of a state or commonwealth, either native or naturalized:
"a Polish citizen"
synonyms
subject, national, passport holder, native, taxpayer, ... more
Generally speaking, it would be a "nation" that is the term that is is used for “a community of people that shares territory and a government”, since the other options usually reside within said country.
Answer:
a. gold coins
Explanation:
Marco Polo was impressed by the paper money, coal burning and gunpowder in China. But, gold coins are not new to him.
They became more interested in art