Which Three Factors Should You Consider When Deciding Between Jira

Which three factors should you consider when deciding between Jira Cloud and Jira Server? (Choose three.)

A) the ability to integrate Jira with a cloud-based source repository (e.g. Bitbucket)
B) the amount of time required for system administration
C) the availability of a REST API
D) the commercial apps you would like to use
E) the ability to integrate with an external user directory (e.g. company LDAP directory)
F) the number of workflows you will require