What Is the Difference Between NodeService and NodeService in Alfresco

Multiple Choice

What is the difference between nodeService and NodeService in Alfresco Content Services?

A) There is no difference, these two beans are identical.
B) The upper case bean is an AOP proxy, and injects auditing, security, and other features into the underlying service.
C) The lower case bean is an AOP proxy, and injects auditing, security, and other features into the underlying service.
D) The NodeService bean does not exist.