Which of the following sentences uses commas correctly? A. Carol was the last person, out of the house wasn't she?

B. Carol was the last person out of the house, wasn't she?

C. Carol, was the last person out of the house wasn't she?

D. Carol was the last person out of the house wasn't, she?

a-he encouraged islamic schools to introduce greek texts.

d-he invited greek scholars to teach their texts to the locals.

explanation:

the transmission of the greek classics to latin western europe during the middle ages was a key factor in the development of intellectual life in western europe.[1] interest in greek texts and their availability was scarce in the latin west during the earlier middle ages, but as traffic to the east increased so did western scholarship.

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