Because the company was forced to recall its faulty products, it soon had a considerable amount of useless inventory.

A. supply

B. stock

C. substitute

D. security

【答案解析】本题目正确选项B。译文：公司必须召回残次品，所以很快就堆积了大量无用存货。解析：题中画线词inventory意为“存货，存货清单”；在四个备选项中，A项supply意为“供给，补给；供应品”；B项stock意为“股份，股票；库存”；C项substitute意为“代用品；代替者”；D项security意为“安全，安全性”，这里需要选择和画线词inventory相近的词，因此，依据题意在四个选项中最符合题意的选项是B。