Please help with this DB

1.is there any relationship between the U.S. dollar value and the global gold market price? If so, can the U.S. Fed adjust the money supply to control the global gold market price? How? A reference link (URL) to an article that supports your answer will be a plus.

2.Bitcoin with the blockchain technology is considered as a trend in transactions. Some countries (e.g. China) also started to provide their owncryptocurrency.Do you think the U.S. federal bank will issue its own cryptocurrency soon? Why or Why not?

3.Which one, the expansionary fiscal policy, or the expansionary monetary policy, will be more effective to recover the U.S. economy after the pandemic?Please provide a reference link to support your answer.