Paul's budget constraint line for goods A and B is QB = -(1/4) QA + 5, where QA is the quantity of good A and QB is the quantity of good B. According to that budget constraint line, which alternative is incorrect? O a. Paul can definitely buy a basket with 5 units of A and 2 units of B. O b. Paul must give up 4 units of A to obtain 1 unit of B. O c. Paul's budget could be $100 and the market prices of A and B could be respectively $5 and $20. O d. Paul's budget could be $20 and the market prices of A and B could be respectively $1 and $4. O e. The relative price of A in terms of B is 4. Check