B. Refunds for Returned Discontinued Products. Within ninety (90) days after Buyer’s receipt of a Discontinuation Notice, Buyer may at its option return to Seller, at Seller’s sole cost, risk, and expense, any or all Discontinued Products covered by that Notice in Buyer’s inventory, and Seller shall provide Buyer with a full refund of the Purchase Price of all such returned Discontinued Products. Such refund shall become due upon Buyer’s delivery of the returned Discontinued Products to the carrier for shipment to Seller.