Diagram A A. In three or more sentences, fully describe the image labeled diagram A, explain how, and why it is used to describe market in disequilibrium as it relates to price PA. B. Referring to image diagram A, use the equation QD :30 and QS = 42 to calculate shortage or surplus. Explain whether the amount you calculated is a shortage or surplus, and why. C. In at least four or more sentences, referring to the image below, fully describe the process of how the invisible hand (that is the price mechanism), will restore this market back to equilibrium. D. In three or more sentences, referring to the image below, explain how the result in C would be different if the price PA is imposed by the government? Diagram A Pr1ce (per unit) QD Q3 Quantlty (per unit 01' Um c]