A company's competitive advantage is product differentiation. The company has multiple new products with unique features targeted to variousCustomer groups.It plans to sell its products via retail channels and online. One of the activities the company should focus on first when determining inventoryLevels for each product is:
选项：

A: identifying and documenting each market segment's need
B: planning equivalent inventory levels for each product
C: setting price points for each product
D: determining inventory levels at retail outlets