Which choice reveals the attitude of someone who has self-doubt about their performance?

The choice that reveals the attitude of someone who has self-doubt about their performance would be one where uncertainty about abilities is expressed. The statement indicating, "I am often uncertain about my abilities," directly conveys a lack of confidence and indicates that the individual frequently questions their skills and performance levels. This self-doubt can stem from various factors, such as past experiences, comparisons with others, or personal expectations.

In contrast, the other statements express a sense of confidence or ease regarding performance. For instance, saying "I never worry about my performance" and "Success comes easily to me" both imply a strong belief in one's capabilities, while "I feel confident with my work" directly indicates assurance and a positive self-view. These contrasting attitudes highlight the significance of the expression of uncertainty found in the selected choice, making it a clear reflection of self-doubt.