In a construction project, the project team has identified that the project is behind schedule due to unforeseen delays in the delivery of construction materials. The project manager wants to take corrective actions to re-align the project schedule. Which of the following corrective actions would be most appropriate in this scenario?

A. Increasing the working hours of the construction team B. Negotiating with suppliers for expedited delivery of materials C. Modifying the project scope to accommodate the delays D. Ignoring the delays and continuing with the existing schedule