A. Update the quote record each time the customer requests a different product configuration, and clicks the sync button to update the opportunity.

B. Use the products related list to associate the different configurations with the opportunity. Update the Amount field with the most likely purchase price.

C. Create a new quote record for each of the different product configurations. Sync the most likely to be purchased back to the opportunity.

D. Create new opportunities for each quote request. Change the forecast category to omitted for all except the most likely to be purchased.