The correct answer, as I see in the text, is 2 and 4 because we see in the claim that encryption began to be necessary in the informational Age, and that governments of the countries can develop this encryption to protect its people.
Answer:
I think that the answer is D
The Umayyad dynasty established Arabic as the official language of the caliphate.
(B) To picture in your mind :)
Answer:
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