The golden age period in Chinese history were China was experienced peace and wealth. Many inventions, like paper money were created during this time period that spread through trade to other places in the world. A)Shintoism
B)Tang and Song Dynasties
C)Silk Road
D)Archipelago

Tang and song dynasties is your answer
It’s not the Silk Road because that was universal every strived not just China

Hope this helps!

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.