Which Windows PowerShell cmdlet should you use?

Your company uses Office 365. You need to identify which users do NOT have a Microsoft Exchange Online license assigned to their user account.
Which Windows PowerShell cmdlet should you use?

A.
Get-ManagementRoleAssignment

B.
Get-User

C.
Get-RoleGroupMember

D.
Get-LogonStatistics

E.
Get-RemovedMailbox

F.
Get-MSOLContact

G.
Get-Recipient

H.
Get-Mailbox

I.
Get-Group

J.
Get-MailboxStatistics
K.
Get-MSOLUser
L.
Get-MailContact