Referring to Informatica Domain Architecture, Select the Statement Which Is

Referring to Informatica Domain Architecture, select the statement which is correct and true.

A) A worker node does not use a service manager
B) The OS process that is running after the service manager is started is called pmserver
C) The service manager on node 1 will directly monitor services on node 1 and node 2. This is why it is called the gateway manager.
D) Nodes within a domain are identified by their name, a hostname and portnumber