Answer:
Explanation:
A feudal contract was an exchange of pledges established by custom and tradition that created the economic and political relationship between lords and vassals, or lesser lords. It was based on an exchange of land for loyalty and military service. ... A fief was an estate bestowed upon a vassal by a greater lord.
Serfs who occupied a plot of land were required to work for the lord of the manor who owned that land. ... Serfs were often required not only to work on the lord's fields, but also in his mines and forests and to labor to maintain roads.
Offered advice on getting and keeping power
#2 is A and #4 is C the other two I can’t answer w out the text didn’t want to give you the wrong answers for the other two.
Answer:
d) they inspired more african americans to join the union army
Explanation:

Actually Welcome to the Concept of the history.
=> Potatoes and quinoa were among the unique crops; Camelids (llamas and alpacas) and guinea pigs were the unique domesticated animals.
=> The Incan civilization was predominantly agricultural. The Incas had to overcome the adversities of the Andean terrain and weather.