【单选题】A copper producer is worried about the copper prices going down. The risk of downward movement in prices can be hedged by taking one of the following potions
【单选题】The major difference between the Consumer Price Index and the Producer Price Index is that:
A.
the PPI is based on retail prices and CPI is based on wholesale prices.
B.
the PPI measures the cost of living of self-employed workers and the CPI measures the cost of living of salaried workers.
C.
the PPI generally registers a higher rate of inflation than the CPI.
D.
the PPI is based on the cost of a basket typically purchased by producers, while the CPI is based on the cost of a basket typically purchased by consumers.