D) They wanted their full population of slaves to be counted for purposed Congresional representation.
A peninsula is a land in which three sides of it is surrounded by water!
In this case, Europe in a peninsula because it is surrounded by three bodies of water. I would suggest you look at a map to get a deeper understanding.
B they had finish part of it in 1869 and it had taken them six years so that means they started building it in 1863. Then they had continued after that but it was small sections of them adding to the existing railroad.
