If the Government Reduces Expenditure on Goods and Services by $30

If the government reduces expenditure on goods and services by $30 billion,then aggregate demand

A) increases by more than $30 billion and real GDP increases.
B) decreases by more than $30 billion and real GDP decreases.
C) decreases by $30 billion and real GDP decreases.
D) increases by $30 billion and real GDP increases.
E) increases and potential GDP increases.