A good purchase for an investor seeking a high degree of liquidity with minimal market risk would be a U.S

Which of the following would increase the value of a firm's stock?

a. a decrease in the firm's present profit b. a decrease in the anticipated growth rate of future profits c. an increase in the perceived riskiness of future profits d. a fall in the interest rate e. an anticipated increase in the interest rate

When the marginal cost is higher than the average total cost, 

A. the average fixed cost must exceed the average variable cost. B. the average variable cost must also be higher than the average total cost. C. the higher additional value causes the average to rise. D. the higher additional value causes the average to fall.