A design-build team is pricing a project with significant geotechnical uncertainty. Which contract type best allows the owner to share geotechnical risk with the design-builder while maintaining cost control?
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A
Fixed lump sum with full risk transfer to design-builder
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B
Cost-plus with a guaranteed maximum price and owner-retained geotechnical risk
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C
Unit price contract for all work
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D
Pure cost-plus with no ceiling