Answer:
he should take a break and don't review too hard or else it will result in forgetting everything he'd learned the past day.
Explanation:
The Guptas lost power because they had a substantial loss of territory and imperial authority caused by their past feudal system and the invasion of the Huna peoples from Central Asia. However, these factors all played in and their were many reasons why the Guptas lost power. After the collapse of the empire, India was ruled again by many regional powers before and a small line of the empire continued to rule a portion of their ex-empire before being ousted.
At one point, the value of the United States dollar was set according to the gold standard. One of these examples is the fixed exchange rate. The gold exchange standard guarantees the fixed exchange rate to the currency of another country that uses the gold standard.
The answer would be letter A.