You use price lists in Dynamics 365 Sales.

The correct answer is D. Opportunities that use the expired price list can continue through their lifecycle. In Dynamics 365 Sales, a price list can include a Start Date and End Date to define the effective period for that price list, such as a promotional pricing period. Microsoft’s pricing guidance explains that price lists and price list items define pricing for products, and that price calculation applies across opportunity, quote, order, and invoice records.

The expiration date controls the effective availability of the price list going forward; it does not automatically invalidate existing opportunity records that already reference that price list. This distinction matters operationally: if an opportunity was already created with a valid price list, the sales process can continue without forcing users to replace pricing midstream. That preserves pricing consistency across the opportunity lifecycle and prevents disruption to quotes, orders, and downstream sales documents.

Option A is too strong because Dynamics 365 does not require replacement of prices simply because the referenced price list later expires. Option B incorrectly limits use based on the creation date of the opportunity. Option C is not the best answer because the key supported behavior is continuation of existing opportunities, not adding expired price lists to new opportunities with a warning.

References/topics: Price lists; price list start and end dates; opportunity pricing; product catalog pricing; opportunity lifecycle management.