You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the  WebLogic Node Manger to start servers for each product. Which statement is true?（）

• A、You need to install a separate node manager for each Middleware Home that has a unique  major and minor WebLogic Version Number.
• B、You need to install and configure only one instance of Node Manager for all products,  regardless of the WebLogic version number.
• C、You need to install and configure a separate Node Manager for each domain of each product  you want to run on the machine.
• D、You need to install one Node Manager but use separate SSL certificates for each product when  searching the network communication to the machine