please clearly answer the question.

Case 7.2 Incoterms (C\&F) In August 2006, International Commodities Export Corporation (ICEC) entered into an agreement for the sale of 230 tons of Chinese white beans to North Pacific Lumber company (NPL). According to the agreement, the beans were to conform to sample pc-16 and the shipment was to be made on the basis of C\&F. Thirteen separate containers of beans were loaded on board two vessels at the port of Hong Kong for shipping to Portland, Oregon. An independent surveyor of quality 162 Executing the Transactions found the bean quality to be in conformity with the description of the goods in the The U.S. Food and Drug Administration (FDA) detained the shipment on arrival shipper's invoice. in Portland, Oregon, on the ground that the goods contained fith and were unfit for human consumption. The beans were stored in a warehouse under federal government detention. After efforts to obtain release of the cargo, the buyer rejected the shipments for failure to conform to the contract (sample pc-16). Questions 1. Did title pass from seller to buyer? If so, when? 2. Is the seller responsible for the goods under C8F when the goods are onboard the vessel? How about after delivery to buyer