HardDesign: E-Commerce System (Amazon)

What is the purpose of storing the price in the cart (price snapshot) at add time?

— Tests your understanding of this concept.

Answer Options

ATo enable price history tracking
BTo show users the price at time of adding, and detect price changes before checkout
CTo reduce database queries
DBecause prices never change

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This question is from the Design: E-Commerce System (Amazon) topic (System Design Cases).

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