Which statements are true about Cloud Scheduler?

Which statements are true about Cloud Scheduler?
A . It is available in Group, Professional, Enterprise, Unlimited, and Developer Editions only.
B . Cloud Scheduler is now enabled by default for all organizations.
C . You can automatically see the New Meeting Request button on all eligible contact, lead, and person account detail pages.
D . Meeting organizers can not use Cloud Scheduler to request meetings with customers, and have customers select preferred times before confirming the meeting.
E . Administrators can add or remove the New Meeting Request button on multiple page layouts using the new Cloud Scheduler quick setup method.

Answer: B,C,E