Refer to the diagram. Discretionary fiscal policy designed to slow the economy is illustrated by:

A.  the shift of curve T 1 to T 2 .
B.  the shift of curve T 2 to T 1 .
C.  a movement from a to c along curve T 2 .
D.  a movement from d to b along curve T 1 .

answer:

B.  the shift of curve T 2 to T 1 .