In which of the following circumstances would you most likely procure the goods or services instead of producing them in-house？（　）
A．Your company has excess capacity, and your company can produce the goods or services
B．Your company has no excess capacity, and cannot produce the goods or services
C．There are many reliable vendors for the goods or services that you are attempting to procure but the vendors cannot achieve your level of quality
D．The goods or services are confidential in design or nature