Henry had to change the grades of four different students. He did so using his query that was calculating his grades. When he went back to the table, he should expect that A. the new data was missing.
B. the table was also changed.
C. the new data was added to the table along with the old data.
D. the table required a new query to continue calculations.

Which of the following is a function performed by market prices? a. market prices communicate information to buyers and sellers. b. market prices coordinate the decisions of buyers and sellers. c. market prices motivate entrepreneurs to produce those products that are currently most desired relative to their costs of production. d. all of the above are functions performed by market prices.