Osborn Manufacturing uses the NPV and IRR methods as its primary tools for evaluating capital projects. Which of the following most likely describes Osborn Manufacturing with regard to firm ownership and company size Firm ownershipCompany size（）①A. Public Small ②B. Private Large ③C. Public Large

A. ①

B. ②

C. ③

钻孔接近煤岩，预计可能有瓦斯或其他有害气体漏出时，必须有瓦斯检查工或矿山救护队员在现场值班，检查空气成分。