The death of a spouse leads toa) feelings of loss and guilt. b) reexamination of personal and financial goals that were set aside during the course of the marriage. c) profound feelings of loss and brings about drastic changes in economic and social changes. d) loss but the start of a new life.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .