Which of the given statements, if true, seems most probable to yield behavior which would conflict with the law of demand? (i) People cannot afford to drive as much whenever the price of gasoline goes above $3.00 per gallon. (ii) The greater heroin addicts encompass injected in a short time, the more desperate they become for their subsequently fix. (iii) Sam finds it tough and tougher to even smile politely after hearing similar joke for the third time in a week. (iv) Recent high school graduates are more probable to attend college throughout a recession since the trouble of finding a decent job has decreased the opportunity costs of a college education.
Can someone help me in getting through this problem.