The exact extract asks which data is included in the POS report submitted by partners. The correct answer is A, B, C, D because the POS report is used to reflect downstream sales and return activity across the partner channel. Return data from SR’s lower-level partners is included because Huawei must understand reverse-flow transactions and channel returns. ST sales data to lower-level partners is included because sell-through data records partner-to-partner movement in the channel. SO sales to end customers data is included because sell-out data shows final customer demand and real market consumption. Return data for SOR end customers is also included because customer-level returns must be tracked for accurate net sales, rebate calculation, and channel compliance. Since the question uses multiple selections and all four options describe legitimate sales or return data in the partner reporting chain, none should be excluded. Reference: Huawei HCSA-Sales-Smart PV V2.0 Partner Policies Outside China training extract.