You installed WebLogic, SOA Suite, and Oracle Service Bus on a machine and want to use the  WebLogic Node Manager 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 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  want to run on the machine.
D.You need to install one Node Manager but use separate SSL certificates for each product when  securing the network communication to the machine.