Answer:
In 1979, the Iranian Revolution occured that removed the Shah from power.
Explanation:
They were helping people learn a new language because it would help them and give them better opertunties to get work and understand people around them. This was very important for them because without learning a new language they could not speak to the people. I think it's very good they learned a new language
<span>D. Were accompanied by an increase in trade</span>