Consider the following data sets of Price (P) and Quantity Demanded (Q ), which one best describes the law of demand O a) Q {1, 2, 3} and P {3, 2, 1} Obj Q (1, 2, 3) and P (1, 2, 3} O c) Q. {1, 2, 3 } and P {1, 1, 1} O d) Q {1, 2, 3 } and P {3, 1, 2} O e ) Q {1, 2, 3} and P {1, 2, 1}