Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions .
Exhibit: Stages in the Production of an Office Building

-(Exhibit: Stages in the Production of an Office Building) A mining firm extracts iron from the earth. A steel mill converts the iron to steel beams for use in construction. A construction company uses the steel beams to make a building. Assume that the total product of these firms represents the only components of the building and that they will have no other uses. What is the valued-added by Crane Construction?

A) $725,000
B) $825,000
C) $950,000
D) $1,050,000