The two central ideas in the text - "The Rise of Greek city" are as follows. The Greece developed because of its geographical position and the war between city-states Athens and Sparta.
The geographical location of the Greek peninsula led to its development. There was easy access to water as there were numerous islands, deep harbors and a network of small rivers. All these proved very helpful in making the Greek people explorers and traders.
The mountain terrain made it very difficult for the people to travel or to communicate. That's why the city-states developed independently. Athens and Sparta became one of the most important city-states of Greece which then developed differences. Due to these differences, both the states fought a war known as Peloponnesian war.
Depending on the audience, the formality, ideas presented, and vocabulary can change. For example, if you were presenting to children, you wouldn't use complex words.
twain alludes that when a prayer seeks victory for one side that mean that the other side will be defeated in the battle.the prayer is not creating a positive effect for neither sides.he gives the analogy of the rain which on the one side might be really beneficial but on the other hand it might destroy the farmers crop
I believe it's 'D' because the original sentence is in second person (i.e. "you" and "your") and it makes the most sense. To me. I'm sorry if this is wrong after all.