Which of the Following Statements Is True

Which of the following statements is true?

A) An initial sender is at the beginning of the message path, whereas the service consumer is at the end of the message path.
B) An intermediary service transitions through the initial sender role when it invokes another service provider.
C) An initial sender is the service consumer at the beginning of the message path, whereas the ultimate receiver is the service provider at the end of the message path.
D) An initial sender is not related to the message path but is instead a part of hybrid service component composition sequences.