Which out of the following is phenomenon that leads to Hyperinflation?

Select one:
a. It is a situation when a nation experiences very high and
accelerating inflation.
b. It is a situation caused by an increase in prices of inputs like labour, raw material
c. It is a situation of persistent rise in inflation along with dip in growth and increase in unemployment
d. It is a situation when aggregate demand in an economy outpaces aggregate supply

= It is a situation when a nation experiences very high and
accelerating inflation.​