QUESTION 4 To say that people make marginal decisions means that O a. they consider whether to do something or not to do it at all. 0 b. they usually wait until the last minute before making a decision to buy' 0 c. decisions about whether to do a bit more or a bit less of an activity by weighing the additional costs against the additional benets of those actions. 0 d. most peoplejust barely get by on the incomes they earn and live from day to day. QUESTION 5 Refer to the gure below. If the student whose study habits are illustrated here is currently studying for 8 hours, she should E s L.) MC .2 z 4 a n T im Spent Studying (hours) 0 a. cut back on the number of hours she is studying because the marginal benet of studying for the 8th greater than the marginal cost of doing so. 0 b. increase the number of hours she is studying because the marginal benefit of studying for the 8th hour is greater than the marginal cost of doing so. 0 c. increase the number of hours she is studying because the marginal benefit of studying for the 8th hour is less than the marginal cost of doing so. 0 d. cut back on the number of hours she is studying because the marginal benet of studying for the 8th hour is less than the marginal cost of doing so