The answer is C. Pilgrims
Bush fallowingis a system of farming whereby the farmer cultivates one piece of land for some years and later leave it for some years with the aim of restoring the fertility of the soil naturally. During this fallow period, the farmer cultivates another piece of land.
The correct answer is C. Sassanid
They were the last Persian empire before it fell to Arabs and fully converted to Islam. After a series of political strife, a young King inherited the throne and was not capable of fighting off the vast and united Arab armies that were slowly making their way through Persia. Many artistic and cultural ideals of the Sassanids are steel seen today in the Islamic world.
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