The main duty of a vassal was to a. run his lord’s estate. c. farm land owned by nobles. b. advise the king. d. fight to defend his lord’s land.

The correct answer is: D

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d. fight to defend his lord’s land.

Explanation:

The Vassals during the Middle Ages had a series of responsibilities, such as to maintain the manor of their feudal lord, watch over the daily activities in the manor, they recruited men for the Lord's army, protected and managed his lord’s manor, supervise the serfs and peasants.

ba geologist finds four sedimentary rock she determines that no geologic events have shifted the layers she labeles them a,b,c,dbfrom top to bottom

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