It was a thriving economy, everyone loved Egypt or Alexandria since It had great farm land and since there was so many people they needed lots of housing space which they had, and plenty of farms to feed the demand of people.
I think A but I`m not a hundred % sure. :)
Answer: The answer is B, Old Testament Book of Psalms.
Explanation:
Many experts believe that the decline of the ancient Aryan civilization was caused by environmental changes. Another theory suggests that a sharp rise in the Aryan population led to the decline.