In the early 1800s, farmers did not use metal plows because:
a) the plows were not available yet
b) the farmers believed the metal would contaminate the soil
c) the plows were too expensive for most to afford
d) the farmers had other methods that were more efficient

omg i dont know oops sorry

it refers to race, i am pretty sure this was a popular term in nazi germany or something.

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation:

b: the exchange of coined money