单选题Which of the following instance configuration information does not come with a default value， and must be provided by the installer？（）AInstance nameBMerchant keyCDatabase nameDSite Admin IDESecurity port numbers for the administration tools
单选题
Which of the following instance configuration information does not come with a default value， and must be provided by the installer？（）
A
Instance name
B
Merchant key
C
Database name
D
Site Admin ID
E
Security port numbers for the administration tools
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