The correct answer is：A
Higher demand from customers，lower interest rates on loans and increased availability of credit
Monetary policy manages demand by influencing the supply of money（including the availability of credit）and interest rates. An expansionary policy implies low interest rates to encourage borrowing and investment，and to discourage saving. It also implies an increased availability of credit to encourage spending and the stimulation of demand in an economy.
Tax rates are a tool of fiscal policy，so the options that mention them are incorrect.
The other option would be the result of a contractionary monetary policy.
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