What is the correct expression for marginal utility?

Select one:

A.It is equal to total utility divided by quantity consumed.

B.It is equal to total utility divided by the quantity demanded.

C.It is the change in total utility resulting from a change in the quantity consumed.

D.It is equal to the additional utility divided by the quantity consumed.

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When istotal utilityat a maximum?

Select one:

A.When marginal utility isdecreasing.

B.When marginal utility iszero.

C.When marginal utility isincreasing

D.When marginal utility ismaximum.

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Why does the demand curve slope downward?

Select one:

A.Lower prices mean a lower consumer surplus which will encourage increased consumption.

B.Since the marginal utility decreases with increased consumption, the price must fall in order to induce people to buy more.

C.Since total utility increases with increased consumption, a lower price is necessary to encourage increased production.

D.Since the marginal utility increases with increased consumption, people will be eager to buy more at lower prices.

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Suppose that Reza buys two products and that the marginal utility of anadditional carton of soya milk is 20 and its price is $1.25, whereas the marginal utility for anadditional orange costing 50 cents (0.50) is 7. Refer to the above information to answer this question. What can be deducedspecific to the marginal utility PER DOLLAR spent?

Select one:

A.Reza should reduce his consumption of soya milk.

B.Reza should divide his budget equally between soya milk and oranges.

C.Reza should buy more soya milk.

D.Reza should buy more oranges.

E.Nothing can be deduced.