Explanation:

Box 1: No
TeamsOnly: Can schedule meetings in Teams only, but can join Skype for Business or Teams meetings.
Box 2: Yes
By default, when assigning either TeamsOnly or SfbWithTeamsCollabAndMeetings to an individual user, any existing Skype for Business meetings scheduled by that user for the future are converted to Teams meetings.
Box 3: No
SfBWithTeamsCollabAndMeetings: Has the chat and calling functionality of user in SfBOnly mode.
SfBOnly: Can initiate chats and calls from Skype for Business only.
Reference:
https://docs.microsoft.com/en-us/microsoftteams/migration-interop-guidance-for-teams-with-skype