A. From Exercises 8.10 on page 686 of the Book: 5, 9, 13, 19, 25, 31, 33, 35, 39, 41.
B. From Exercises 8.11 on page 697 of the Book: 3, 13, 23, 25, 41, 47, 55.
C. From Exercises 9.1 on page 719 of the Book: 1, 3, 7, 8, 15, 23, 25, 31, 33, 45, 49.