Answer:
the Covered Wagons. Pioneers that travelled west across hundreds and thousands of miles needed supplies, guides and protection to help them make the often treacherous journey. Wagon Trains were formed to allow groups to reduce the dangers associated with the long journey west.
Explanation:
The correct answer is C. Medicine.
Dr. DeBakey was a well known cardiac surgeon. This means that he worked on the heart constantly during his operations. One of his crowning accomplishments was his help in developing the idea of a MASH. MASH (Mobile Army Surgical Hospital) was a medical unit used during World War II that served as a fully functioning hospital in combat areas. This helped soldiers to receive quicker medical attention after suffering injuries.
Battle? HAH!!! The "Battle" of wounded knee was no battle at all it was a massacre and part of a larger genocide