Concept:The phrasal verb "shake off" means to get rid of something unwanted, such as a bad habit.Explanation:The sentence requires a phrasal verb that means removing lazy habits to succeed in business."Shake off" correctly expresses getting rid of a bad habit.The other options do not form a suitable phrasal verb in this context.So, the completed sentence is: To succeed in any business, one must be prepared to shake off one's lazy habits.Answer:A. off