Answer :
Monasteries and convents are the institutions in Europe provided centres of learning, production, and trade during the Middle Ages. Hence, option C is correct.
What is the purpose of monasteries?
Inns were scarce during the Middle Ages, so travellers had to find a place to stay somewhere else, usually a monastery.
In addition, they assisted with feeding the needy, caring for the sick, and giving local youngsters an education.
Thus, option C is correct.
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