问题详情

The following costs have arisen in relation to the production of a product:
(i) Planning and concept design costs
(ii) Testing costs
(iii) Production costs
(iv) Distribution and customer service costs
In calculating the life cycle costs of a product, which of the above items would be included？
A.(iii) only
B.(i), (ii) and (iii) only
C.(i), (ii) and (iv) only
D.All of the above请帮忙给出正确答案和分析，谢谢！