Which scenario is an example of cost-push inflation?

Which scenario is an example of cost-push inflation?
A. Consumers have more money to buy cars, and the prices of cars and car parts rise as a result.
B.An increase in workers’ wages raises the production cost of cars, and car prices rise as a result.
C.The demand for cars falls as consumers have less disposable income, and car prices fall as a result.
D.A government bailout helps car manufacturers lower their costs, and car prices fall as a result.