Director of Sales is the key player here, so A. Usually on these high-stakes projects with lots of critics, you need senior business sponsorship to unlock resources. I've seen this angle in official practice tests and guides too. If anyone's got a different take based on the exam guide, let me know.
I don’t think D is right. Director of Sales (A) usually has the authority to unlock budget and handle critics in a big CRM project like this. The call centre manager would mostly influence day-to-day adoption, not resources.