Which two actions are taken by the chechout method? Choose 2 answers

What determines the explanation for the discounted price of a child product in a promotion?
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Felix is the Vlocity CPQ administrator, and he manages a very large product catalog with over 5 million SKUs. He needs to write a rule that will apply to products ordered by all consumer accounts. What type of rule will be easiest for him to implement?
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In which two cases should a developer use child price lists? Choose 2 answers

You want to price the newest smartphone for B2B customers at $999 , but $900 for B2C customers. What is the best way to do it