Explain how each of the following affects the equilibrium price and quantity of trucking services. In each case, show whether the change(s) is/are due to a shift in the demand for or supply of trucking services. a.Insurance premiums for truckers decrease because of competition in insurance market. b.Home sale & purchase transactions increase. c.Improved technologies in fuel mileage of the trucks without any increase in the price of trucks. d.Government increases the tax on diesel fuel