Only 3 question please answer ASAP! Thanks!

Question 4 Most economics textbooks do not mention kickbacks since they assume: O Consumers spend their own money purchasing items they consume. O Consumers are rational and respond to incentives. O Government officials are altruistic and do their best to help voters. O Property rights are well defined. George Akerloff focused the market for used cars and discussed an issue later generally called the "lemons problem." A "lemon" is a low quality used car, with the seller but not the potential buyer aware of this. Since sellers have more information about the quality of the car: O moral hazard causes an inefficiently large number of transactions to occur. O moral hazard causes an inefficiently small number of transactions to occur. O adverse selection causes an inefficiently small number of transactions to occur. O adverse selection causes an inefficiently large number of transactions to occur. In order for a kickback to take place: O Rich people must have more political power than poor. O Those in private business must be corrupt (but government officials may be honest). O Government officials must be corrupt (but those in private business may be honest). O Someone must have the authority & responsibility to decide how to spend money of others