Phalaenopsis, also known as moth orchids, are widely popular and economically important as potted plants. They were the primary potted plant sold at the 2012 Dutch Auction, owing to their appealing blooms, extended flowering duration, and global market demand.
(A) Rose: Predominantly sold as cut flowers, not potted plants, at auctions.
(B) Chrysanthemum: A popular flower, but not the leading potted plant at the Dutch auction.
(C) Kalanchoe: A potted plant, but not the principal one in this specific auction.
(D) Phalaenopsis: Confirmed. The main potted plant sold at the 2012 Dutch Auction.