Strong as an adjective to describe the anglo saxon race is likely linked to a stereo type based on the colonization of a large portion of the world from this particular group of people. There is no empirical data that those of anglo saxon race are stronger than people from other races.
The one that does not accurately describe Mesopotamia is : D. it has remains of the Great ice sheets
Mesopotamia is where the first western civilization began (which eliminate option C) and is well known for it's agricultural technique and a place where wheat and lentils first found (which eliminate option A and B)
Because of the good green grass that there is.