A. Send the 6-month forecast data weekly instead of monthly to the supplier, and request it purchase raw materials based on the projections

B. Request that the supplier submit an open order report on a weekly basis with details on the latest shipment status

C. Discuss the issue with engineering to determine if the firm can use different raw materials to manufacture the product

D. Extend the forecast timeline from six months to one year, and request the supplier purchase raw materials based on the projections