Concept:The underlined word urge means a strong inner drive or impulse.Explanation:In the sentence, urge refers to a strong wish or longing to succeed in life.The word nearest in meaning to urge is desire.Both words express a powerful craving or aspiration.Compulsion suggests force, need suggests necessity, and courage suggests bravery, which do not match the sense of personal longing.Therefore, the most suitable answer is desire.Answer:B. desire