A.    1. T;      2. F;           3. T;       4. T;         5. F

B.    6. 13, 1, 14 Y;         7. 9, 2, 11 N;          8. 19, 0, 19Y;
       9. 10, 3, 13 Y;       10. 19, 3, 22 Y

C.  11. N;     12. N;     13. Y;      14. N;     15. N

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