Mark A, B, C, or D to indicate the correct answer to each of the following questions

Here are the marked answers based on the questions provided:

14. C. minimize
15. A. self-aware
16. C. stressed out
17. D. optimistic
18. C. distractions
19. A. mental
20. C. must
21. B. may
22. C. must
23. A. shouldn't
24. D. mustn't
25. A. shouldn't
26. D. must
27. C. need
28. D. shouldn't
29. A. should
30. D. must

Feel free to ask if you need further clarifications!