'Finally' is the answer the others don't make sense if you try to read them with the rest of the sentence.
Turning out to be just like his father (A)
My answer is maybe a noun? I'm not sure
Um... idk where the places where placed or any of the geographical were. I was completely confused but... In east egg tom lived, in west egg (the main character) Jay Gatsby lived and in valley of ashes the wilsons lived