4. Determine the map below shows coastlines of the southeastern U. S. at three
times during the Cenozoic era. Which
choice represents the coastline at the height
of the Pleistocene ice age? Explain your
reasoning.
Choice A
Choice B
Choice C

Dall of the above all of the choices make sense

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.