Which of these is a correct description of one of the ways in which a command economy differs from a market economy

Run fully by the government with little to no freedom in private enterprises

Explanation:

Market economies are run by businesses and households with no government interventionCommand economies are run by fully the government with little to no private enterprises

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.