Answer:
A Tiffany/Walmart strategy
Explanation:
A Tiffany/Walmart strategy refers to an strategy in which a company offers variations of a product, one to target a high-end segment and another one to target a low-end segment. According to this, the situation presented is an example of a Tiffany/Walmart strategy because Hallmark offers high-end cards that cost $4.50 and a different line of cards that targets the low-end segment and costs $0.99.