The answer is the generalized anxiety disorder. Generalized anxiety disorder is described by extreme and unnecessary worry about certain life events or activities. It is often being persistently apprehensive of life choices and happening and always expecting of worst things to come. The stressor is often unknown, not specified and mostly stressing out about her state of life in general.
Dispositional attribution is the explanation of individual behavior as a result caused by internal characteristics that are within the individual, as opposed to external influences that stem from the environment or culture in which that individual is found.
I would say the answer is...I could complete my work ahead of schedule
because I work efficiently.
Hope this helps!