Use appropriate graphs and provide clear explanation ( using relevant economic theories and discussions ) for the likely economic impact of each case. please give complete and concise answer to each question:

A. Imposition of sales tax to reduce consumption of tobacco among those who are heavily addicted to use of tobacco.

B. Imposition a sales tax on purchase of luxury products.

C. Providing subsidy to buyers of solar power to increase use of non-fossil based energy.

D. putting a heavy sales tax on use of gas and using the revenue to subsidizer production electric cars.