Americans a. are much more likely to belong to interest groups than are citizens of other nations b. are much less likely to belong to interest groups than are citizens of other nations c. don't have any choices when it comes to joining an interest group d. are willing to join groups that are not involved in politics, but they shy away from groups that engage in political activity e. prefer to belong to political groups rather than other groups

its d i know cause i've been googling it

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 .