Answer: A) lacks conscientiousness
Explanations: Conscientiousness can be simply refered to as the basic personality trait of being diligent and careful in nature. People who are conscientious are always orderly and organize as well as efficient in all their activities. They take things seriously and they always have the desire to do a task well.
Any one who lack conscientiousness will always find it had to be organise, diligent or efficient in any task. They usually lacks the desire as well as the seriousness to complete a task.
Wilson fails to do well in any task as he is unorganized as well as careless and irresponsible while carrying out a task. This simply implies that Wilson most likely lack conscientiousness.