Answer: the answer is d and b i hope this helped
Explanation: i have no exsplination i just answered right lol
Domesticated animals: The Americas had not seen horses, pigs, or cattle prior to the arrival of the Europeans.
These animals changed how Native Americans lived, ate, and fought. They were able to use horses to travel more quickly, fight their enemies, and eventually in agriculture. The animals also brought disease which harmed the Native Americans.
The first step is to announce the campaign for the presidency and start to gather publicity.