40 Which of the following is NOT a factor that leads to the problem discussed in the passage?
(A) There is an insufficiency of qualified workers.
(B) It is greatly wanted by many consumers.
(C) Delivery and shipping are disrupted.
(D) Cost in branding and marketing is rising.
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統計: A(0), B(3), C(1), D(6), E(0) #2996122
統計: A(0), B(3), C(1), D(6), E(0) #2996122