Answer:
C
Explanation:
Based on the decription A seems like the Great wall of China B Sounds like a timple like structure in south or central America and D is probably the sphinx in Egypt. Also arches and domes are very Roman.
A Chinese merchant sells goods in Europe. (APEX)
It could have been because their ammunition racks were protected by Water jackets, to prevent fires in the ammunition racks from spreading and potentially causing detonation
Answer: gold coins
Explanation: The rulers gave the muslim merchants with gold coins to help increase trade.