A mayor announces plans to reduce the salaries of Firefighters by ten percent, but the union that represents the firefighters refuses to accept the cut. In order to avoid going to court over the problem the two sides agree to settle
their dispute through a
O Magistrate
O Lawyer
Judge
O Mediator

The answer is Mediator.
Because when you google the definition of the mediator it tells you the following:

“a person who attempts to make people involved in a conflict come to an agreement; a go-between.”

The federal reserve took an expansionary approach during the crisis. this was done by expanding the money supply and boosting liquidity. this can be seen in the fed's actions of lending to banks, purchasing securities, and lowering the federal funds rate in order to lower overall interest rates. the fed's goal was to increase consumer spending and overall liquidity within the system, and they pursued this by expanding the supply of liquid money.