Suppose the optimal tax on greenhouse gas emissions in Toronto is $1,800. However, city officials imposed a tax of $1,200. With the $1,200 tax:A. There will be too high a level of emissions B. social cost of emissions at the post tax equilibrium quantity will be below $1200 C. the social value of emissions at the post-tax equilibrium quantity will be below $1,200. d. the social value of emissions at the post-tax equilibrium quantity will be above $1,200