Don't need thorough explanation, just the answer

The bias in the CPI distorts private contracts because O a. a worker that links her salary to the CPI is likely to be worse off than a worker that doesn't link her salary to the CPI. O b. the CPI cannot properly account for what goods and services a typical urban consumer buys. O c. a lender that links the interest payments on the loan to the CPI is likely to be worse off than a lender that does not link the interest payments on the loan to the CPI. O d. a future payment that is linked to the CPI is likely to be raised above the true increase in the price level