6. Figure 7-6 O Supply 8. O 9. O 10. O 11. O PRICE 12. O 13. O 14. O 15. O 16. O 17. 0 QUANTITY 18. O 19. O Refer to Figure 7-6. When the price falls from P2 to Pa, producer surplus 20. O O a. decreases by an amount equal to C. O b. increases by an amount equal to A+B. O c. decreases by an amount equal to A+B. O d. decreases by an amount equal to A+C