Final answer:
The scenario's indication of diminished personal accomplishment is Marsha's feeling that nothing she does is noteworthy, which reflects a sense of dissatisfaction with one's job-related achievements and impact.
Step-by-step explanation:
In the provided scenario, the aspect that represents diminished personal accomplishment with regard to job strain is the feeling that nothing Marsha does is truly noteworthy. This aligns with the definition of diminished personal accomplishment, where an individual may feel dissatisfied with their job-related accomplishments or believe they have failed to make a meaningful impact through their work. The feelings of being cynical and bitter as well as the perception that clients are always taking from her empty soul support the aspect of depersonalization, another dimension of job burnout, but they do not directly relate to diminished personal accomplishment.