What is one reason that people want to minimize costs ? a. costs are often bad things that people don’t want to accept. b. costs always involve spending money. c. costs always have to be paid before a benefit arrives. d. costs are calculated differently by everyone .

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 .