Why it is d?

Global industries (GI) is planning to use some existing equipment from its own facilities in a foreign project. The used equipment has a book value of $2 million but a market value of $6 million. If GI's marginal tax rate is 34%, what is its opportunity cost of using the used equipment in the foreign project? a) $2 million b) $3.25 million c) $6 million d) $4.64 million Ans: d