One Form of "Cost-Push Inflation," Economists Refer to Are

One form of "cost-push inflation," economists refer to are

A) attempts by labor to raise wages that result in increases in prices.
B) rising prices due to excessive levels of government spending financed by open-market operations through the Fed.
C) rising prices due to excessive levels of aggregate demand.
D) the rise in total sales revenue attributable to price-tag changes rather than to real volume changes.