B. Other two don't make sense.
Answer:
Lincoln probably made so many referances to the American Revolution because of the Civil War at the time considering that the South wanted some sort of independance from the North because they thought they needed slavery and the American Revolution was so that America could become independant and not be ruled by Britain anymore, so that is why he probably referred a lot to the American Revolution.
Most members come from the president's political party
B is your answer
Hope this helps :)
