Option B suggests a proactive approach, where the project lead should analyze the difficulties, such as team sickness and absences, to understand their origins. By identifying the causes, the project lead can then work on developing suitable solutions to mitigate the challenges and get the project back on track. Options A and C propose addressing the issue by asking for additional budget or reviewing the project scope. While these actions might be necessary in certain situations, they don't directly address the underlying causes of the delays.