Answer:
b. it affects aggregate demand only, but aggregate supply also needs to be changed.
Step-by-step explanation:
Fiscal policy in economics refers to the use of government expenditures (spending) and revenues (taxation) in order to influence macroeconomic conditions such as Aggregate Demand (AD), inflation, and employment within a country. Fiscal policy is in relation to the Keynesian macroeconomic theory by John Maynard Keynes.
A fiscal policy affects combined demand through changes in government policies, spending and taxation which eventually impacts employment and standard of living plus consumer spending and investment.
Inflation can be defined as the persistent general rise in the price of goods and services in an economy at a specific period of time.
Generally, inflation usually causes the value of money to fall and as a result, it imposes more cost on an economy.
Fiscal policy is likely to fail to correct stagflation in an economy because it affects aggregate demand only, but aggregate supply also needs to be changed.