With the invention of refrigeration, they started the practice of slaughtering cattle before the train journey. They packed the meat into refrigerated freight cars, known as "reefers". That facilitated the shipment of meat by train over long distances, with the meat arriving at its destination in edible condition.
Not 100% sure, but I think its D.
The Double V campaign was a slogan and drive to promote the fight for democracy in overseas campaigns and at the home front in the United States for African Americans during World War II.
Hope this helps :)
Explanation:
Russia and Japan were fighting over Korea, Manchuria, etc. Began in 1904, but neither side could gain a clear advantage and win. Both sent reps to Portsmouth, NH where T.Roosevelt mediated Treaty of New Hampshire in 1905. TR won the Nobel peace prize for his efforts, the 1st pres. to do so.