Which of the Following Contributed to Zynga's Bad Reputation and Low

Which of the following contributed to Zynga's bad reputation and low share prices?

A) Most of its management lacked key technical skills.
B) The founder's aggressive style made it difficult to build a cohesive team.
C) The CEO set unreasonable expectations the company was unable to meet.
D) It was discovered that the company's growth resulted from illegal business practices.
E) There was no longer a demand for their product in the changing marketplace.