How does mixed bundling differ from pure bundling? Under what conditions is mixed bundling preferable to pure bundling? A. With mixed bundling the goods can be sold separately or as a bundle. Mixed bundling is preferable when goods are only slightly negatively correlated and or marginal costs are significant. B. With mixed bundling the firm offers various bundles. Mixed bundling is preferable when goods are only slightly negatively correlated and or marginal costs are significant. C. With mixed bundling the goods can be sold separately or as a bundle. Mixed bundling is preferable when goods are only slightly positively correlated and or marginal costs are significant. D. With mixed bundling the goods must be sold as a bundle. Mixed bundling is preferable when goods are only slightly negatively correlated and or marginal costs are significant. E. With mixed bundling the firm offers various bundles. Mixed bundling is preferable when goods are only slightly positively correlated and or marginal costs are significant.