I'm preparing next supplementary test. now I'm going through questions I failed, I need help about this one. everything is full given. thanks

Suppose that businesses and consumers become too optimistic about the future of the economy and this has led to high demand of goods and services and hence inflation. To stabilize output and price, the Federal Reserve could A buy bonds to raise interest rates B buy bonds to lower interest rates C sell bonds to lower interest rates D sell bonds to raise interest rates