Which of the Following Statements Best Corresponds to the Diffusing

Which of the following statements best corresponds to the diffusing step of the innovation process?

A) Google decides to create Buzz in response to competition from Facebook and other social networking sites.
B) Google's team creates APIs for third-party applications.
C) Google releases the beta version of Buzz for usability testing.
D) Google rolls out final code complete version of Buzz for users, rid of bugs and defects.
E) Google continues to add newer features and widgets to the Buzz platform and addresses user concerns.