Complete each of the following sentences:
a. Your tastes determine the _________ you derive from consuming a particular good.
b. _________ utility is the change in _________ utility resulting from a _________ change in the consumption of a good.
c. As long as the marginal utility is positive, total utility is _________.
d. The law of diminishing marginal utility states that as an individual consumes more of a good during a given time period, other things constant, total utility _________.