Please refer to the $2022$ annual report of

JD$.$com, Inc. $($link provided below$)$ to answer the following questions:

Please comment on JD$\text{'}$s working capital management for the years ending in $2022,2021,$ and $2020$ in terms of cash management, inventory management, and credit policy. $(15$ pts$)$

a$.$ Please propose and calculate any measures that you will employ for your analysis.

b$.$ Based on your calculation in part a$),$ please share your thoughts on the trends of JD$\text{'}$s working capital management and potential concerns $($if any$)$ you have for JD$.$