Which of these options allows for goods to be easily transported from western russia to eastern russia

I think you forgot to give the options along with your question. I am answering the question based on my knowledge and research and hope that it helps you. The Trans Siberian Railway is the option that allows for goods to be easily transported from Western Russia to Eastern Russia. 

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.

The answer is c) people evacuated but almost all returned